Updating the OMERACT filter: core areas as a basis for defining core outcome sets

John R Kirwan¹, Maarten Boers, Sarah Hewlett+23

• ¹From the University of Bristol Academic Rheumatology Unit, Bristol Royal Infirmary, Bristol, UK; Departments of Epidemiology and Biostatistics, and Rheumatology, VU University Medical Center, Amsterdam, The Netherlands; University of the West of England, Academic Rheumatology Unit, Bristol Royal Infirmary, Bristol, UK; Department of Occupational Sciences and Occupational Therapy, Institute for Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; Division of Rheumatology, Johns Hopkins University, Baltimore, Maryland, USA; Section of Rheumatology, Cardiff University School of Medicine, Cardiff, UK; Division of Musculoskeletal Disease, University of Leeds; UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; Versailles-Saint Quentin En Yvelines University, Department of Rheumatology, Ambroise Paré Hospital, APHP, Boulogne-Billancourt; Paris-Descartes University, Medicine Faculty, APHP, Cochin Hospital, Rheumatology B, Paris, France; University of California, Geffen School of Medicine, Los Angeles, California, USA; Université de Lorraine, Université Paris Descartes, Nancy; Université Pierre et Marie Curie (UPMC), Paris; AP-HP Pitié Salpêtrière Hospital, Department of Rheumatology, Paris, France; Departments of Rheumatology and Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Department of Clinical Immunology and Rheumatology, Academic Medical Center, University of Amsterdam and Atrium Medical Center Heerlen, the Netherlands; NIHR-Leeds Musculoskeletal Biomedical Research Unit, Division of Rheumatic and Musculoskeletal Diseases, University of Leeds, Leeds, UK; Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA; Seattle Rheumatology Associates, Swedish Medical Center Rheumatology Research Division, University of Washington School of Medicine,