Predicting unfavorable long-term outcome in juvenile idiopathic arthritis: results from the Nordic cohort study

Table 3 Cross-validation of the four prediction models of unfavorable long-term outcome in the Nordic JIA cohort

	Not in remission^a	Functional disability (CHAQ)	Functional disability (PhS)	Joint damage (JADI-A)
AUC total cohort	0.84	0.79	0.90	0.84
AUC validation sets^b	0.78 (0.72–0.82)	0.73 (0.67–0.76)	0.74 (0.65–0.80)	0.73 (0.63–0.76)

AUC area under the receiver operating characteristic curve, CHAQ Childhood Health Assessment Questionnaire, PhS Physical Summary Score, JADI-A Juvenile Arthritis Damage Index-Articular
^aNot in remission equals non-achievement of remission off medication
^bThe AUCs in the validation sets are the median AUCs with the interquartile range of the 100 constructed models

ISSN: 1478-6362