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Testing the Model for Predicting Effectiveness of Anakinra in Systemic Juvenile Idiopathic Arthritis

We read the article by Saccomanno, et al, "Predictors of effectiveness of anakinra in systemic juvenile idiopathic arthritis," with great interest1 They reported that shorter disease duration, fewer active joints, higher ferritin levels, and greater activity of systemic manifestations were independently correlated with achievement of complete clinical response at 1 year (CCR1) in systemic juvenile idiopathic arthritis (sJIA).