ROC curve analysis of plasma miR-132 to differentiate patients with RA or OA from HCs. A. ROC plot of plasma miR-132 for the diagnosis of RA. AUC was 0.90. A cutoff value of 67.8 pmol/l diagnosed RA at the sensitivity of 83.8% and the specificity of 80.7%. B. ROC plot of plasma miR-132 for the diagnosis of OA. AUC was 0.91. A cutoff value of 67.1 pmol/l diagnosed OA at the sensitivity of 84.0% and the specificity of 81.2%.