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Table 3 Clinical features describing the first eight years of disease in 440 children with JIA according to occurrence of psoriasis or psoriasis-like rash

From: Psoriasis and associated variables in classification and outcome of juvenile idiopathic arthritis - an eight-year follow-up study

Clinical feature Number of patients assessed Total cohort Psoriasis or psoriasis-like rash n = 27 No psoriasis or psoriasis-like rash n = 413 p-value*
Gender, n (% females) 440 (66.1) 440 (66.1) 27 (48.1) 413 (67.3) 0.06a
Age at time of onset median (IQR) 440 5.5 (2.5-9.7) 7.2 (3.8-11.0) 5.3 (2.3-9.4) 0.08b
Cumulative joints median (IQR) 440 6 (2-12) 11 (5-16) 6 (2-12) 0.02c
Dactylitis (%) 440 24 5 (18.5) 19 (4.6) 0.01a
Nail pitting (%) 440 18 7 (25.9) 11 (2.7) <0.001a
First-degree heredity for psoriasis or psoriatic arthritis (%) 420 51 7 (25.9) 44 (10.6) 0.03a
Enthesitis (%) 438 41 6 (22.2) 35 (8.5) 0.03a
Tenosynovitis (%) 436 88 6 (22.2) 82 (19.8) 0.81a
  1. *Patients with psoriasis or psoriasis-like rash compared with those without, aFisher’s exact test, bIndependent samples Mann-Whitney U test, cIndependent samples median test