title: Harmonizing Pain Outcome Measures: Results of the Pre-OMERACT Meeting on Partnerships for Consensus on Patient-important Pain Outcome Domains Between the Cochrane Musculoskeletal Group and OMERACT.
abstract: OBJECTIVE
  A variety of authorities in pain measurement and outcome methodology met prior to the Outcome Measures in Rheumatology (OMERACT) 12 meeting in May 2014 to develop partnerships for consensus on pain outcomes.
  
  
  METHODS
  Following overview presentations, discussion centered on pain-specific and global constructs in the domain of chronic pain. Practical issues for clinical trial implementation were also discussed. Breakout sessions were completed regarding additional details of domain constructs. A nominal group process involving all workshop participants confirmed that chronic pain outcome measures encompass a broad range of constructs and that existing scales may be inadequate for assessment in clinical trials.
  
  
  RESULTS
  Participants endorsed that both pain intensity and pain interference are important constructs to be measured in clinical trials of chronic pain as it pertains to rheumatologic diagnoses.
  
  
  CONCLUSIONS
  Further work is needed on inclusion of the patient perspective in the development of pain domains as well as Cochrane Collaboration summary of findings tables.
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands. kphill@umich.edu.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health. kphill@umich.edu.
authors.forename: Kristine
authors.initials: K
authors.lastname: Phillips
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Ann
authors.initials: A
authors.lastname: Taylor
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Philip J
authors.initials: PJ
authors.lastname: Mease
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Lee S
authors.initials: LS
authors.lastname: Simon
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Philip G
authors.initials: PG
authors.lastname: Conaghan
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Ernest H
authors.initials: EH
authors.lastname: Choy
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Jasvinder A
authors.initials: JA
authors.lastname: Singh
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Vibeke
authors.initials: V
authors.lastname: Strand
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Laure
authors.initials: L
authors.lastname: Gossec
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Ulrike
authors.initials: U
authors.lastname: Kaiser
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Marteen
authors.initials: M
authors.lastname: de Wit
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Raymond
authors.initials: R
authors.lastname: Ostelo
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Lara
authors.initials: L
authors.lastname: Maxwell
authors.affiliation: From the Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Cardiff University, Cardiff, UK; Swedish Medical Center and University of Washington, Seattle, Washington, USA; SDG LLC, Cambridge, Massachusetts, USA; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; University of Alabama at Birmingham, Birmingham, Alabama; Division of Immunology/Rheumatology, Stanford University, Palo Alto, California, USA; University Hospital Carl Gustav Carus, Dresden, Germany; Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital, Paris, France; EMGO Institute for Health and Care Research, Department of Health Sciences, VU University, and Department of Epidemiology and Biostatistics, VU University Medical Center, VU Medical Center, Amsterdam, The Netherlands.|K. Phillips, MD, PhD, Department of Internal Medicine, University of Michigan; A. Taylor, PhD, MSc, Cardiff University; P.J. Mease, MD, Swedish Medical Center and University of Washington; L.S. Simon, MD, SDG LLC; P.G. Conaghan, MBBS, PhD, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit; E.H. Choy, MD, FRCP, Department of Medicine, Cardiff University School of Medicine; J.A. Singh, MD, MPH, University of Alabama at Birmingham; V. Strand, MD, Division of Immunology/Rheumatology, Stanford University; L. Gossec, MD, PhD, Universite Pierre et Marie Curie and APHP, Department of Rheumatology, Pitie-Salpetriere Hospital; U. Kaiser, Dr, University Hospital Carl Gustav Carus, Dresden, Germany; M. de Wit, PhD, VU Medical Center; R.W. Ostelo, MD, EMGO Institute for Health and Care Research, Department of Health Sciences, VU University; and Department of Epidemiology and Biostatistics, VU University Medical Center; L. Maxwell, MSc, University of Ottawa, Institute of Population Health; P.S. Tugwell, MD, MSc, University of Ottawa, Centre for Global Health.
authors.forename: Peter S
authors.initials: PS
authors.lastname: Tugwell
keywords: ARTHRITIS; OMERACT; OUTCOME ASSESSMENT; PAIN