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

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

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)	0.06^a
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)	0.08^b
Cumulative joints median (IQR)	440	6 (2-12)	11 (5-16)	6 (2-12)	0.02^c
Dactylitis (%)	440	24	5 (18.5)	19 (4.6)	0.01^a
Nail pitting (%)	440	18	7 (25.9)	11 (2.7)	<0.001^a
First-degree heredity for psoriasis or psoriatic arthritis (%)	420	51	7 (25.9)	44 (10.6)	0.03^a
Enthesitis (%)	438	41	6 (22.2)	35 (8.5)	0.03^a
Tenosynovitis (%)	436	88	6 (22.2)	82 (19.8)	0.81^a

^*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

ISSN: 1546-0096