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Table 2 Presence of acute or chronic uveitis in the different JIA categories according to the International League of Associations for Rheumatology (ILAR) classification criteria at the final study visit in 435 children in the Nordic juvenile idiopathic arthritis (JIA) cohort

From: Incidence and predictors of Uveitis in juvenile idiopathic arthritis in a Nordic long-term cohort study

JIA category All children n = 435 (% of all) No uveitis n = 346 (%) Acute uveitis n = 9 (%) Chronic uveitis n = 80 (%) Cumulative total uveitis incidence (95% CI)a
Systemic 18 (4.1) 18 (100.0) 0 (0) 0 (0) 0 (0, 18.5)
Oligoarticular persistent 131 (30.1) 106 (80.9) 0 (0) 25 (19.1) 19.1 (12.7, 26.9)
Oligoarticular extended 78 (17.9) 62 (79.5) 0 (0) 16 (20.5) 20.5 (12.2, 31.2)
Polyarticular RF negative 80 (18.4) 62 (77.5) 0 (0) 18 (22.5) 22.5 (13.9, 33.2)
Polyarticular RF positive 3 (0.7) 3 (100.0) 0 (0.0) 0 (0.0) 0 (0, 70.8)
Juvenile psoriatic arthritis 14 (3.2) 9 (64.3) 0 (0.0) 5 (35.7) 35.7 (12.8, 64.9)
Enthesitis-related arthritis 48 (11.0) 36 (75.0) 8 (16.7) 4 (8.3) 25.0 (13.6, 39.6)
Undifferentiated arthritis 63 (14.5) 50 (79.4) 1 (1.6) 12 (19.0) 20.6 (11.5, 32.7)
  1. aCI, confidence interval