Research ArticleArticle
The OMERACT Ultrasound Group: A Report from the OMERACT 2016 Meeting and Perspectives
Lene Terslev, Annamaria Iagnocco, George A.W. Bruyn, Esperanza Naredo, Jelena Vojinovic, Paz Collado, Nemanja Damjanov, Andrew Filer, Georgios Filippou, Stephanie Finzel, Frederique Gandjbakhch, Kei Ikeda, Helen I. Keen, Marion C. Kortekaas, Silvia Magni-Manzoni, Sarah Ohrndorf, Carlos Pineda, Viviana Ravagnani, Bethan Richards, Ilfita Sahbudin, Wolfgang A. Schmidt, Heidi J. Siddle, Maria S. Stoenoiu, Marcin Szkudlarek, Nikolay Tzaribachev and Maria-Antonietta D'Agostino on behalf of the OMERACT Ultrasound Group
The Journal of Rheumatology February 2017, jrheum.161240; DOI: https://doi.org/10.3899/jrheum.161240
Lene Terslev
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Annamaria Iagnocco
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
George A.W. Bruyn
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Esperanza Naredo
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Jelena Vojinovic
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Paz Collado
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Nemanja Damjanov
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Andrew Filer
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Georgios Filippou
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Stephanie Finzel
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Frederique Gandjbakhch
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Kei Ikeda
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Helen I. Keen
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Marion C. Kortekaas
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Silvia Magni-Manzoni
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Sarah Ohrndorf
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Carlos Pineda
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Viviana Ravagnani
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Bethan Richards
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Ilfita Sahbudin
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Wolfgang A. Schmidt
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Heidi J. Siddle
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Maria S. Stoenoiu
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Marcin Szkudlarek
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Nikolay Tzaribachev
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Maria-Antonietta D'Agostino
From the Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen; Department of Rheumatology, Zealand’s University Hospital, Køge, Denmark; Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino, Turin; Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena, Siena; Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù, Rome; Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital, Mantua, Italy; Department of Rheumatology, MC Groep, Lelystad; Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz; Autónoma University; Hospital Universitario Severo Ochoa, Madrid, Spain; Clinic Center, Faculty of Medicine, University of Niš, Niš; Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; Rheumatology Research Group, The University of Birmingham, Birmingham; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg; Charite University Hospital, Humboldt University; Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne-Billancourt; INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University, 78180 Saint-Quentin en Yvelines, Paris, France; Department of Allergy and Clinical Immunology, Chiba University Hospital, Chiba, Japan; Department of Rheumatology, Royal Perth Hospital, Perth, Australia; Instituto Nacional de Rehabilitacion, Mexico City, Mexico; Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital, Camperdown, Australia; Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc, Brussels, Belgium. As part of the supplement series OMERACT 13, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. L. Terslev, MD, PhD, Center for Rheumatology and Spine Diseases, Rigshospitalet; A. Iagnocco, MD, Dipartimento Scienze Cliniche e Biologiche — Reumatologia, Università degli Studi di Torino; G.A. Bruyn, MD, PhD, Department of Rheumatology, MC Groep; E. Naredo, MD, Department of Rheumatology, Joint and Bone Research Unit, Hospital Universitario Fundación Jiménez Díaz, and Autónoma University; J. Vojinovic, MD, PhD, Clinic Center, Faculty of Medicine, University of Niš; P. Collado, MD, Hospital Universitario Severo Ochoa; N. Damjanov, MD, PhD, Institute of Rheumatology, Faculty of Medicine, University of Belgrade; A. Filer, MD, PhD, Rheumatology Research Group, The University of Birmingham; G. Filippou, MD, Department of Medicine, Surgery and Neurosciences, Rheumatology Section, University of Siena; S. Finzel, MD, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg; F. Gandjbakhch, MD, APHP, Department of Rheumatology, CHU Pitie-Salpetriere, Paris 6 University, GRC-UPMC 08, Pierre Louis Institute of Epidemiology and Public Health; K. Ikeda, MD, PhD, Department of Allergy and Clinical Immunology, Chiba University Hospital; H.I. Keen, MD, PhD, Department of Rheumatology, Royal Perth Hospital; M.C. Kortekaas, MD, PhD, Department of Rheumatology, Leiden University Medical Center; S. Magni-Manzoni, MD, Pediatric Rheumatology Unit, IRCCS Ospedale Pediatrico Bambino Gesù; S. Ohrndorf, MD, Charite University Hospital, Humboldt University; C. Pineda, MD, Research Directorate, Instituto Nacional de Rehabilitacion; V. Ravagnani MD, PhD, Internal Medicine Department, Azienda Socio Sanitaria Territoriale di Mantova, C. Poma Hospital; B. Richards, MD, Rheumatology Institute of Rheumatology and Orthopedics, Royal Prince Alfred Hospital; I. Sahbudin, MD, Rheumatology Research Group, The University of Birmingham; W.A. Schmidt, MD, Immanuel Krankenhaus Berlin, Medical Center for Rheumatology Berlin-Buch; H.J. Siddle, MSc, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital; M.S. Stoenoiu, MD, PhD, Department of Rheumatology, Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires Saint Luc; M. Szkudlarek, MD, PhD, Department of Rheumatology, Zealand’s University Hospital at Køge; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; M.A. D’Agostino, MD, PhD, APHP, Hôpital Ambroise Paré, Rheumatology Department, 92100 Boulogne- Billancourt, and INSERM U1173, Laboratoire d’Excellence INFLAMEX, UFR Simone Veil, Versailles-Saint-Quentin University. Address correspondence to Dr. L. Terslev, Rigshospitalet Glostrup, Center for Rheumatology and Spine Disease, Ndr. Ringvej 57, Glostrup, 2600, Denmark. E-mail: terslev@dadlnet.dk
Abstract
Objective To provide an update from the Outcome Measures in Rheumatology (OMERACT) Ultrasound Working Group on the progress for defining ultrasound (US) minimal disease activity threshold at joint level in rheumatoid arthritis (RA) and for standardization of US application in juvenile idiopathic arthritis (JIA).
Methods For minimal disease activity, healthy controls (HC) and patients with early arthritis (EA) who were naive to disease-modifying antirheumatic drugs were recruited from 2 centers. US was performed of the hands and feet, and scored semiquantitatively (0–3) for synovial hypertrophy (SH) and power Doppler (PD). Synovial effusion (SE) was scored a binary variable. For JIA, a Delphi approach and subsequent validation in static images and patient-based exercises were used to developed preliminary definitions for synovitis and a scoring system.
Results For minimal disease activity, 7% HC had at least 1 joint abnormality versus 30% in the EA group. In HC, the findings of SH and PD were predominantly grade 1 whereas all grades were seen in the EA cohort, but SE was rare. In JIA, synovitis can be diagnosed based on B-mode findings alone because of the presence of physiological vascularization. A semiquantitative scoring system (0–3) for synovitis for both B-mode and Doppler were developed in which the cutoff between Doppler grade 2 and grade 3 was 30%.
Conclusion The first step has been taken to define the threshold for minimal disease activity in RA by US and to define and develop a scoring system for synovitis in JIA. Further steps are planned for the continuous validation of US in these areas.
In this issue
The Journal of Rheumatology
Vol. 50, Issue 9
1 Sep 2023
The OMERACT Ultrasound Group: A Report from the OMERACT 2016 Meeting and Perspectives
Lene Terslev, Annamaria Iagnocco, George A.W. Bruyn, Esperanza Naredo, Jelena Vojinovic, Paz Collado, Nemanja Damjanov, Andrew Filer, Georgios Filippou, Stephanie Finzel, Frederique Gandjbakhch, Kei Ikeda, Helen I. Keen, Marion C. Kortekaas, Silvia Magni-Manzoni, Sarah Ohrndorf, Carlos Pineda, Viviana Ravagnani, Bethan Richards, Ilfita Sahbudin, Wolfgang A. Schmidt, Heidi J. Siddle, Maria S. Stoenoiu, Marcin Szkudlarek, Nikolay Tzaribachev, Maria-Antonietta D'Agostino
The Journal of Rheumatology Feb 2017, jrheum.161240; DOI: 10.3899/jrheum.161240
The OMERACT Ultrasound Group: A Report from the OMERACT 2016 Meeting and Perspectives
Lene Terslev, Annamaria Iagnocco, George A.W. Bruyn, Esperanza Naredo, Jelena Vojinovic, Paz Collado, Nemanja Damjanov, Andrew Filer, Georgios Filippou, Stephanie Finzel, Frederique Gandjbakhch, Kei Ikeda, Helen I. Keen, Marion C. Kortekaas, Silvia Magni-Manzoni, Sarah Ohrndorf, Carlos Pineda, Viviana Ravagnani, Bethan Richards, Ilfita Sahbudin, Wolfgang A. Schmidt, Heidi J. Siddle, Maria S. Stoenoiu, Marcin Szkudlarek, Nikolay Tzaribachev, Maria-Antonietta D'Agostino
The Journal of Rheumatology Feb 2017, jrheum.161240; DOI: 10.3899/jrheum.161240
