Fig. 2From: Matrix metalloproteinase-3 and the 7-joint ultrasound score in the assessment of disease activity and therapeutic efficacy in patients with moderate to severe rheumatoid arthritisReceiver operating characteristic (ROC) curve of matrix metalloproteinase-3 (MMP-3) for classification of disease activity in rheumatoid arthritis (RA). Setting the disease activity score in 28 joints (DAS28) as the reference standard, the sensitivity of MMP-3 in classifying the disease activity of RA was determined using a ROC curve. The corresponding cutoff value in the ROC curve of MMP-3 is 70.5 ng/ml (area under the curve 0.8538, p < 0.0001)Back to article page