title: Development of criteria to distinguish inflammatory from noninflammatory arthritis, enthesitis, dactylitis, and spondylitis: a report from the GRAPPA 2013 Annual Meeting.
abstract: OBJECTIVE
  To describe a research project to develop simple clinical criteria to aid in the identification of inflammatory arthritis, enthesitis, dactylitis, and spondylitis and distinguish these from non-inflammatory conditions. The criteria are particularly intended to aid non-rheumatologists, e.g., dermatologists, who need assistance identifying psoriatic arthritis in patients with psoriasis, but may be useful to all clinicians in properly diagnosing rheumatologic conditions.
  
  
  METHODS
  The proposed research methodology includes the use of a nominal group exercise among expert clinicians and patient focus groups, Delphi exercises among clinicians and patients, application of criteria test sets to a small group of representative patients with inflammatory and non-inflammatory musculoskeletal conditions, and validation by application of optimal criteria sets to large groups of patients with inflammatory and noninflammatory conditions.
  
  
  RESULTS
  Examples of elements to describe inflammatory conditions derived from a nominal group exercise conducted at the 2013 GRAPPA annual meeting are described, along with planned project activities.
  
  
  CONCLUSIONS
  This project will lead to the development of practical criteria to aid in the diagnosis and appropriate clinical care of patients with chronic inflammatory musculoskeletal conditions.
authors.affiliation: From Seattle Rheumatology Associates, Swedish Medical Center, University of Washington School of Medicine, Seattle, Washington; Department of Dermatology, Hofstra North Shore LIJ School of Medicine, Hempstead, New York, USA; University of Leeds, Leeds, UK, and Bradford Hospitals National Health Service (NHS) Foundation Trust, Bradford, UK; University of Toronto; Toronto Western Research Institute; Psoriatic Arthritis Program, University Health Network, Toronto, Ontario, Canada.P.J. Mease, MD, Seattle Rheumatology Associates, director, Rheumatology Research, Swedish Medical Center, and clinical professor, University of Washington School of Medicine; A. Garg, MD, Department of Dermatology, Hofstra North Shore LIJ School of Medicine; P.S. Helliwell, DM, PhD, FRCP, Senior Lecturer in Rheumatology, University of Leeds; and Bradford Hospitals NHS Foundation Trust; J.J. Park, MD, Seattle Rheumatology Associates, and University of Washington School of Medicine; D.D. Gladman, MD, FRCPC, professor of medicine, University of Toronto, senior scientist, Toronto Western Research Institute, and director, Psoriatic Arthritis Program, University Health Network. pmease@philipmease.com.
authors.forename: Philip J
authors.initials: PJ
authors.lastname: Mease
authors.affiliation: From Seattle Rheumatology Associates, Swedish Medical Center, University of Washington School of Medicine, Seattle, Washington; Department of Dermatology, Hofstra North Shore LIJ School of Medicine, Hempstead, New York, USA; University of Leeds, Leeds, UK, and Bradford Hospitals National Health Service (NHS) Foundation Trust, Bradford, UK; University of Toronto; Toronto Western Research Institute; Psoriatic Arthritis Program, University Health Network, Toronto, Ontario, Canada.P.J. Mease, MD, Seattle Rheumatology Associates, director, Rheumatology Research, Swedish Medical Center, and clinical professor, University of Washington School of Medicine; A. Garg, MD, Department of Dermatology, Hofstra North Shore LIJ School of Medicine; P.S. Helliwell, DM, PhD, FRCP, Senior Lecturer in Rheumatology, University of Leeds; and Bradford Hospitals NHS Foundation Trust; J.J. Park, MD, Seattle Rheumatology Associates, and University of Washington School of Medicine; D.D. Gladman, MD, FRCPC, professor of medicine, University of Toronto, senior scientist, Toronto Western Research Institute, and director, Psoriatic Arthritis Program, University Health Network.
authors.forename: Amit
authors.initials: A
authors.lastname: Garg
authors.affiliation: From Seattle Rheumatology Associates, Swedish Medical Center, University of Washington School of Medicine, Seattle, Washington; Department of Dermatology, Hofstra North Shore LIJ School of Medicine, Hempstead, New York, USA; University of Leeds, Leeds, UK, and Bradford Hospitals National Health Service (NHS) Foundation Trust, Bradford, UK; University of Toronto; Toronto Western Research Institute; Psoriatic Arthritis Program, University Health Network, Toronto, Ontario, Canada.P.J. Mease, MD, Seattle Rheumatology Associates, director, Rheumatology Research, Swedish Medical Center, and clinical professor, University of Washington School of Medicine; A. Garg, MD, Department of Dermatology, Hofstra North Shore LIJ School of Medicine; P.S. Helliwell, DM, PhD, FRCP, Senior Lecturer in Rheumatology, University of Leeds; and Bradford Hospitals NHS Foundation Trust; J.J. Park, MD, Seattle Rheumatology Associates, and University of Washington School of Medicine; D.D. Gladman, MD, FRCPC, professor of medicine, University of Toronto, senior scientist, Toronto Western Research Institute, and director, Psoriatic Arthritis Program, University Health Network.
authors.forename: Philip S
authors.initials: PS
authors.lastname: Helliwell
authors.affiliation: From Seattle Rheumatology Associates, Swedish Medical Center, University of Washington School of Medicine, Seattle, Washington; Department of Dermatology, Hofstra North Shore LIJ School of Medicine, Hempstead, New York, USA; University of Leeds, Leeds, UK, and Bradford Hospitals National Health Service (NHS) Foundation Trust, Bradford, UK; University of Toronto; Toronto Western Research Institute; Psoriatic Arthritis Program, University Health Network, Toronto, Ontario, Canada.P.J. Mease, MD, Seattle Rheumatology Associates, director, Rheumatology Research, Swedish Medical Center, and clinical professor, University of Washington School of Medicine; A. Garg, MD, Department of Dermatology, Hofstra North Shore LIJ School of Medicine; P.S. Helliwell, DM, PhD, FRCP, Senior Lecturer in Rheumatology, University of Leeds; and Bradford Hospitals NHS Foundation Trust; J.J. Park, MD, Seattle Rheumatology Associates, and University of Washington School of Medicine; D.D. Gladman, MD, FRCPC, professor of medicine, University of Toronto, senior scientist, Toronto Western Research Institute, and director, Psoriatic Arthritis Program, University Health Network.
authors.forename: Jane J
authors.initials: JJ
authors.lastname: Park
authors.affiliation: From Seattle Rheumatology Associates, Swedish Medical Center, University of Washington School of Medicine, Seattle, Washington; Department of Dermatology, Hofstra North Shore LIJ School of Medicine, Hempstead, New York, USA; University of Leeds, Leeds, UK, and Bradford Hospitals National Health Service (NHS) Foundation Trust, Bradford, UK; University of Toronto; Toronto Western Research Institute; Psoriatic Arthritis Program, University Health Network, Toronto, Ontario, Canada.P.J. Mease, MD, Seattle Rheumatology Associates, director, Rheumatology Research, Swedish Medical Center, and clinical professor, University of Washington School of Medicine; A. Garg, MD, Department of Dermatology, Hofstra North Shore LIJ School of Medicine; P.S. Helliwell, DM, PhD, FRCP, Senior Lecturer in Rheumatology, University of Leeds; and Bradford Hospitals NHS Foundation Trust; J.J. Park, MD, Seattle Rheumatology Associates, and University of Washington School of Medicine; D.D. Gladman, MD, FRCPC, professor of medicine, University of Toronto, senior scientist, Toronto Western Research Institute, and director, Psoriatic Arthritis Program, University Health Network.
authors.forename: Dafna D
authors.initials: DD
authors.lastname: Gladman
mesh_terms: D001168:Arthritis / Q000175:diagnosis*; D015535:Arthritis, Psoriatic / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D007249:Inflammation / Q000175:diagnosis*; D011565:Psoriasis / Q000175:diagnosis*; D013166:Spondylitis / Q000175:diagnosis*
keywords: DACTYLITIS; ENTHESITIS; INFLAMMATORY ARTHRITIS; PSORIATIC ARTHRITIS; SPONDYLITIS