title: Uveitis in juvenile arthritis.
abstract: OBJECTIVE
  To evaluate the clinical features of and determine the risk factors for uveitis in patients with juvenile arthritis.
  
  
  METHODS
  The prevalence and clinical characteristics of uveitis were studied retrospectively in 90 children diagnosed with arthritis. Patients with uveitis were compared with those who did not have eye involvement.
  
  
  RESULTS
  Uveitis was diagnosed in 11 patients (12.2%). Of these, seven (63.6%) had oligoarticular, two (36.4%) had polyarticular, and one (9.1%) had systemic-onset juvenile rheumatoid arthritis (JRA). One patient (9.1%) was diagnosed with enthesitis-related arthritis (ERA) (9.1%). The prevalence of uveitis was significantly higher in patients with oligoarticular JRA. The mean age at onset of arthritis in the uveitis patients was 4.39 years, which was significantly lower than in the non-uveitis group. There was no gender difference in the risk of developing uveitis. Antinuclear antibodies (ANA) was positive in seven (63.6%) of the 11 uveitis patients, confirming ANA as a significant determinant for uveitis in juvenile arthritis. Rheumatoid factor was not found to be a risk factor. One (9.1%) of the 11 patients developed serious sight-threatening complications during the follow-up period.
  
  
  CONCLUSIONS
  This study confirmed that oligoarticular onset, ANA positivity, and young age are risk factors for developing uveitis in patients with juvenile arthritis. Gender was not found to be a determining factor. Prompt treatment of uveitis effectively decreased the prevalence of visual impairment.
authors.affiliation: Department of Ophthalmology, School of Medicine, Dokuz Eylül University, Urla Berk Sitesi 143, Urla/Izmir, Turkey. tulin.berk@deu.edu.tr
authors.forename: A T
authors.initials: AT
authors.lastname: Berk
authors.forename: N
authors.initials: N
authors.lastname: Koçak
authors.forename: E
authors.initials: E
authors.lastname: Unsal
mesh_terms: D000293:Adolescent; D017677:Age Distribution; D017668:Age of Onset; D000974:Antibodies, Antinuclear / Q000276:immunology; D001171:Arthritis, Juvenile / Q000150:complications* / Q000175:diagnosis / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D015995:Prevalence; D012189:Retrospective Studies; D012217:Rheumatoid Factor / Q000276:immunology; D012307:Risk Factors; D017678:Sex Distribution; D014605:Uveitis / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology*
chemical_list: D000974:Antibodies, Antinuclear; D012217:Rheumatoid Factor