Fig. 5From: Increased serum adenosine deaminase activity in patients with adult-onset Still's diseaseROC curve analysis of serum ADA activity and serum ferritin for diagnosis of AOSD. Cut off value: 14.5 U/L. Sensitivity: 93.3%. Specificity: 83.0%. AUC: 0.93 (a). Cut off value: 759.9 μg/L. Sensitivity: 100%. Specificity:84.3%. AUC: 0.94 (b)Back to article page