{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T07:53:07Z","timestamp":1780473187143,"version":"3.54.1"},"reference-count":28,"publisher":"The Journal of Rheumatology","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Rheumatol"],"published-print":{"date-parts":[[2009,3]]},"abstract":"<jats:sec><jats:title>Objective.<\/jats:title><jats:p>To compare outcomes in patients with juvenile psoriatic arthritis (PsA) with those in patients with other juvenile idiopathic arthritis (JIA) subtypes, and to evaluate characteristics and genetic markers that may differentiate PsA from other subtypes of JIA.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods.<\/jats:title><jats:p>JIA patients first admitted between 1980 and 1985 were clinically examined after a median of 15 years. Health status was reassessed by the Short Form-36 Health Survey (SF-36) after a median of 23 years. Of 336 JIA patients, 31 (9%) had PsA.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results.<\/jats:title><jats:p>Predictors of PsA were psoriasis in the patient (OR 12.06, p = 0.004) or first-degree relative (OR 30.86, p &lt; 0.001), dactylitis (OR 10.97, p &lt; 0.001), and ankle\/toe arthritis (OR 3.04, p = 0.038) within the first 6 months. HLA-DRB1*11\/12 status (OR 2.69, p = 0.040) and onset after age 6 years (OR 4.41, p = 0.004) differentiated PsA from either oligoarthritis or polyarthritis. After 15 years, PsA patients had poorer physical health than healthy population controls (p = 0.001). After 23 years, the SF-36 physical scores were poorer in PsA patients than in those with either oligoarthritis or polyarthritis (p &lt; 0.045). The need for disease-modifying antirheumatic drugs and\/or anti-tumor necrosis factor agents was present in 33% of PsA versus 8% in oligoarthritis and 13% in either oligoarthritis or polyarthritis patients (p &lt; 0.001 and p = 0.002, respectively).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion.<\/jats:title><jats:p>In addition to a history of psoriasis, dactylitis, ankle or toe arthritis, and DRB1*11\/12 in children with JIA indicate the likelihood of PsA, a subtype associated with unfavorable outcome.<\/jats:p><\/jats:sec>","DOI":"10.3899\/jrheum.080543","type":"journal-article","created":{"date-parts":[[2009,10,20]],"date-time":"2009-10-20T18:35:59Z","timestamp":1256063759000},"page":"642-650","source":"Crossref","is-referenced-by-count":74,"title":["Juvenile Psoriatic Arthritis: Longterm Outcome and Differentiation from Other Subtypes of Juvenile Idiopathic Arthritis"],"prefix":"10.3899","volume":"36","author":[{"given":"BERIT","family":"FLAT\u00d8","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"GUNNHILD","family":"LIEN","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"ANNA","family":"SMERDEL-RAMOYA","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"ODD","family":"VINJE","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2262","published-online":{"date-parts":[[2009,2,4]]},"reference":[{"key":"2018112909184726000_36.3.642.1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3476(82)80747-6"},{"key":"2018112909184726000_36.3.642.2","doi-asserted-by":"crossref","first-page":"1007","DOI":"10.1002\/anr.1780320810","article-title":"Psoriatic arthritis in children","volume":"32","author":"Southwood","year":"1989","journal-title":"Arthritis Rheum"},{"key":"2018112909184726000_36.3.642.3","doi-asserted-by":"publisher","DOI":"10.1093\/rheumatology\/32.9.836"},{"key":"2018112909184726000_36.3.642.4","first-page":"1566","article-title":"Proposal for the development of classification criteria for idiopathic arthritides of childhood","volume":"22","author":"Fink","year":"1995","journal-title":"J Rheumatol"},{"key":"2018112909184726000_36.3.642.5","first-page":"390","article-title":"International League of Associations for Rheumatology classification of juvenile idiopathic arthritis: second revision, Edmonton, 2001","volume":"31","author":"Petty","year":"2004","journal-title":"J Rheumatol"},{"key":"2018112909184726000_36.3.642.6","first-page":"1531","article-title":"Patterns of joint involvement at onset differentiate oligoarticular juvenile psoriatic arthritis from pauciarticular juvenile rheumatoid arthritis","volume":"29","author":"Huemer","year":"2002","journal-title":"J Rheumatol"},{"key":"2018112909184726000_36.3.642.7","doi-asserted-by":"publisher","DOI":"10.1002\/art.23240"},{"key":"2018112909184726000_36.3.642.8","doi-asserted-by":"publisher","DOI":"10.1093\/rheumatology\/23.3.166"},{"key":"2018112909184726000_36.3.642.9","doi-asserted-by":"publisher","DOI":"10.1136\/ard.49.9.694"},{"key":"2018112909184726000_36.3.642.10","doi-asserted-by":"publisher","DOI":"10.1002\/art.22173"},{"key":"2018112909184726000_36.3.642.11","doi-asserted-by":"publisher","DOI":"10.1002\/art.10146"},{"key":"2018112909184726000_36.3.642.12","first-page":"386","article-title":"Prognostic factors in juvenile rheumatoid arthritis: a case-control study revealing early predictors and outcome after 14.9 years","volume":"30","author":"Flato","year":"2003","journal-title":"J Rheumatol"},{"key":"2018112909184726000_36.3.642.13","doi-asserted-by":"publisher","DOI":"10.1002\/art.22181"},{"key":"2018112909184726000_36.3.642.14","first-page":"869","article-title":"The place of juvenile onset spondyloarthropathies in the Durban 1997 ILAR classification criteria of juvenile idiopathic arthritis. 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