Fig. 1From: Validation of prediction models of severe disease course and non-achievement of remission in juvenile idiopathic arthritis: part 1—results of the Canadian model in the Nordic cohortReceiver operating characteristic (ROC) curves showing external validation of the Canadian prediction model in the Nordic JIA cohort. Blue curve: using severe disease course as outcome. C-index with IQR = 0.85 (0.83–0.87). Red curve: using non-achievement of remission as outcome. C-index with IQR = 0.66 (0.63–0.68)Back to article page