Research ArticleArticle
Limited Reliability of Radiographic Assessment of Sacroiliac Joints in Patients with Suspected Early Spondyloarthritis
Alice Ashouri Christiansen, Oliver Hendricks, Dorota Kuettel, Kim Hørslev-Petersen, Anne Grethe Jurik, Steen Nielsen, Kaspar Rufibach, Anne Gitte Loft, Susanne Juhl Pedersen, Louise Thuesen Hermansen, Mikkel Østergaard, Bodil Arnbak, Claus Manniche and Ulrich Weber
The Journal of Rheumatology October 2016, jrheum.160079; DOI: https://doi.org/10.3899/jrheum.160079
Alice Ashouri Christiansen
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Oliver Hendricks
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Dorota Kuettel
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Kim Hørslev-Petersen
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Anne Grethe Jurik
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Steen Nielsen
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Kaspar Rufibach
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Anne Gitte Loft
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Susanne Juhl Pedersen
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Louise Thuesen Hermansen
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Mikkel Østergaard
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Bodil Arnbak
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Claus Manniche
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Ulrich Weber
From the King Christian 10th Hospital for Rheumatic Diseases, Gråsten; Hospital of Southern Jutland, Aabenraa; Institute of Regional Health Research, University of Southern Denmark, Odense; Department of Radiology, and Department of Rheumatology, Aarhus University Hospital, Aarhus; Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart, Middelfart; Department of Internal Medicine, Hospital Lillebaelt Vejle, Vejle; Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, Glostrup; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Rufibach rePROstat, Biostatistical Consulting and Training, Basel, Switzerland. Dr. Rufibach is founder and owner of Rufibach rePROstat and is an employee of F. Hoffmann-La Roche, Basel, Switzerland. The Hospital of Southern Jutland, University of Southern Denmark, Hospital Lillebaelt, Vejle, and Knud og Edith Eriksens Mindefond funded Dr. Christiansen’s salary during the course of a PhD program, including this study. A.A. Christiansen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; O. Hendricks, MD, PhD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; D. Kuettel, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Hørslev-Petersen, MD, DMSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark; A.G. Jurik, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Department of Radiology, Aarhus University Hospital, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; S. Nielsen, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; K. Rufibach, PhD, Rufibach rePROstat, Biostatistical Consulting and Training; A.G. Loft, MD, DMSc, Department of Internal Medicine, Hospital Lillebaelt Vejle, and Department of Rheumatology, Aarhus University Hospital; S.J. Pedersen, MD, PhD, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; L.T. Hermansen, MSc, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland; M. Østergaard, MD, PhD, DMSc, COPECARE, Center for Rheumatology and Spine Diseases, Rigshospitalet – Glostrup, and Department of Clinical Medicine, University of Copenhagen; B. Arnbak, MSc, PhD, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; C. Manniche, MD, DMSc, Institute of Regional Health Research, University of Southern Denmark, and Research Department, Spine Centre of Southern Denmark, Hospital Lillebaelt Middelfart; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Hospital of Southern Jutland, and Institute of Regional Health Research, University of Southern Denmark. Address correspondence to Dr. A.A. Christiansen, Department of Research, King Christian 10th Hospital for Rheumatic Diseases, Toldbodgade 3, 6300 Gråsten, Denmark. E-mail: achristiansen@gigtforeningen.dk. Accepted for publication August 31, 2016.
Published eLetters
eLetters are comments published online only and are not peer-reviewed. Publication of eLetter submissions is not guaranteed, and all submissions are reviewed and edited at the discretion of The Journal's staff.
If you wish to publish Letters to the Editor or Correspondence, please submit through our online submission system ScholarOne Manuscripts.
Jump to comment:
No eLetters have been published for this article.
In this issue
The Journal of Rheumatology
Vol. 51, Issue 4
1 Apr 2024
Limited Reliability of Radiographic Assessment of Sacroiliac Joints in Patients with Suspected Early Spondyloarthritis
Alice Ashouri Christiansen, Oliver Hendricks, Dorota Kuettel, Kim Hørslev-Petersen, Anne Grethe Jurik, Steen Nielsen, Kaspar Rufibach, Anne Gitte Loft, Susanne Juhl Pedersen, Louise Thuesen Hermansen, Mikkel Østergaard, Bodil Arnbak, Claus Manniche, Ulrich Weber
The Journal of Rheumatology Oct 2016, jrheum.160079; DOI: 10.3899/jrheum.160079
Limited Reliability of Radiographic Assessment of Sacroiliac Joints in Patients with Suspected Early Spondyloarthritis
Alice Ashouri Christiansen, Oliver Hendricks, Dorota Kuettel, Kim Hørslev-Petersen, Anne Grethe Jurik, Steen Nielsen, Kaspar Rufibach, Anne Gitte Loft, Susanne Juhl Pedersen, Louise Thuesen Hermansen, Mikkel Østergaard, Bodil Arnbak, Claus Manniche, Ulrich Weber
The Journal of Rheumatology Oct 2016, jrheum.160079; DOI: 10.3899/jrheum.160079