Fig. 1

The comparison of survival probability between patients with isolated minor ST-T changes and controls via Kaplan-Meier curves. The survival probability for the group with ST-T changes (red line) drops more sharply, indicating a higher all-cause mortality rate. Censored data points on the curves indicate where death has not occurred by the end of the study period. These data points are included in the analysis but do not contribute to the event rate at that time point—abbreviations: CVD, cardiovascular disorder, CHD, coronary heart disease.