Feasibility and Face Validity of Outcome Measures for Use in Future Studies of Polymyalgia Rheumatica: An OMERACT Study

From the Epidemiology Centre Versus Arthritis, Norwich Medical School, University of East Anglia, Norwich, UK; Department of Rheumatology, East Suffolk and North Essex Foundation Trust, Ipswich, UK; Department of Rheumatology, Austin Health; Department of Medicine, University of Melbourne, Melbourne, Australia; Primary Care Centre Versus Arthritis, Research Institute for Primary Care and Health Sciences, Keele University, Keele; PMRGCA Scotland, Scotland, UK; Department of Epidemiology and Biostatistics, and Amsterdam Rheumatology and Immunology Center, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam, the Netherlands; Leeds Institute of Health Sciences, University of Leeds, Leeds, UK; Department of Rheumatology, and Department of Medicine, Hospital for Special Surgery, New York, New York, USA; Department of Rheumatology and Immunology, Medical University Graz, Graz, Austria; Department of Rheumatology, Hospital of Bruneck, Bruneck, Italy; Department of Rheumatology, Norfolk and Norwich University Hospital, Norwich, UK; Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark; Department of Rheumatology, Faculty of Health and Applied Sciences, University of the West of England, Bristol, UK; SDG LLC, Cambridge, Massachusetts, USA; School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds; National Institute for Health Research (NIHR) Leeds Biomedical Research Centre, Leeds Teaching Hospitals National Health Service (NHS) Trust, Leeds, UK; Discipline of Medicine, The University of Adelaide; the Rheumatology Unit, The Queen Elizabeth and Royal Adelaide Hospitals, Adelaide, Australia.