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

Table 4 Development of clinical variables during a follow-up time of at least seven years after onset (median 98, range 84–147 months) in groups of patients included in a cohort of 440 Nordic patients with JIA

	Psoriasis or psoriasis-like rash		Dactylitis
	n = 27	n ^a	n = 24	n ^a
Radiological SI^b
At onset		0
Cumulative at median 98 months		2		0
Inflammatory back pain/buttock pain
At onset		3		0
Cumulative at median 98 months		6		0
Enthesitis
At onset		5		3
Cumulative at median 98 months		6		4

^aNumber of patients with the feature developing during the first median 98 months
^b SI sacroiliitis

ISSN: 1546-0096