As shown in Figure 4, the AUC of ROC curve for IL-12p70, IL-17 and HDL-C predicting severe CAD alone were 0.652 (95%CI:0.604–0.699, P < 0.001), 0.644 (95%CI:0.596–0.692, P < 0.001) and 0.665 (95%CI: 0.617–0.713, P < 0.001), respectively. Here, IL17A is linked to coronary artery disorder.