title: Outcome measures in psoriatic arthritis.
abstract: Psoriatic arthritis (PsA), an inflammatory arthritis associated with psoriasis usually seronegative for rheumatoid factor, has emerged as a more common and severe disease than previously appreciated. The disease is multifaceted. Thus the assessment of PsA requires attention to peripheral joint involvement, axial disease, dactylitis, and enthesitis, as well as the skin manifestations. In addition, the assessment of patient reported features such as patient assessment of disease activity, pain, fatigue, quality of life, and the new concept of participation are important. The assessment of damage and the assessment of tissue histology are also important outcome measures. This article summarizes these features of PsA as well as current knowledge on the instruments available for the assessment of these domains.
authors.affiliation: The University of Toronto, Toronto Western Hospital, Toronto, Ontario, Canada. dafna.gladman@utoronto.ca
authors.forename: Dafna D
authors.initials: DD
authors.lastname: Gladman
authors.forename: Philip J
authors.initials: PJ
authors.lastname: Mease
authors.forename: Paul
authors.initials: P
authors.lastname: Healy
authors.forename: Philip S
authors.initials: PS
authors.lastname: Helliwell
authors.forename: Oliver
authors.initials: O
authors.lastname: Fitzgerald
authors.forename: Alberto
authors.initials: A
authors.lastname: Cauli
authors.forename: Ennio
authors.initials: E
authors.lastname: Lubrano
authors.forename: Gerald G
authors.initials: GG
authors.lastname: Krueger
authors.forename: Désirée
authors.initials: D
authors.lastname: van der Heijde
authors.forename: Douglas J
authors.initials: DJ
authors.lastname: Veale
authors.forename: Arthur
authors.initials: A
authors.lastname: Kavanaugh
authors.forename: Peter
authors.initials: P
authors.lastname: Nash
authors.forename: Christopher
authors.initials: C
authors.lastname: Ritchlin
authors.forename: William
authors.initials: W
authors.lastname: Taylor
authors.forename: Vibeke
authors.initials: V
authors.lastname: Strand
mesh_terms: D015535:Arthritis, Psoriatic / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D018450:Disease Progression; D006801:Humans