Figure 2From: Prediction model for knee osteoarthritis based on genetic and clinical informationROC (receiver operating characteristic) curves of two prediction models. ROC curves of prediction models that used only genetic factors (MODEL I, AUC = 0.554) and that used both genetic factors and clinical data with age adjustment in the selected control group (MODEL II, AUC = 0.742). The curve for MODEL II was drawn through 1,000 simulation studies with rigorous age adjustment for control groups that reflected the Japanese elderly population. MODEL II had a significantly improved AUC. Curves were described by using the ROCR package.Back to article page