Fig. 4

The receiver operating characteristic (ROC) curves of the pSMI. The areas under the ROC curves of the baseline risk model, baseline risk model + pSMI, and baseline risk model + CCR for predicting the occurrence of MACEs after PCI were 0.647 (95%CI 0.604 to 0.690; P < 0.001), 0.682 (95%CI 0.641 to 0.722; P < 0.001), and 0.677 (95%CI 0.635 to 0.719; P < 0.001), respectively. P for comparison between the baseline model and the baseline model + pSMI is 0.033. P for comparison between the baseline model and the baseline model + CCR is 0.052, and P for comparison between the baseline model and + pSMI and the baseline model + CCR is 0.640. The baseline risk model includes previous AMI, previous PCI, previous stroke, heart failure, atrial fibrillation, COPD, diabetes mellitus, BNP, uric acid, HbA1c, LVEF, MVD, and diuretics