Table 6. Multivariate analysis-predictors of MACE (Cox proportional hazards regression model).

^*Clinical risk factors were adjusted with age, gender, hypertension, diabetes mellitus, dyslipidemia, and current smoking, †Patients were classified into moderate-high risk group or low risk group according to DTS. CI: confidence interval, CAD: coronary artery disease, CCTA: coronary computed tomography angiography, DTS: Duke treadmill score, MACE: major adverse cardiac events, XECG: exercise electrocardiography