Baseline characteristics of the study population by levels of sex-minute walk test distance.

Data are presented as mean ± standard deviation, number (%) of patients. *Compared using ANOVA test. †Compared using Chi-square or Fisher exact test. BP = blood pressure; MI = myocardial infarction; TIMI = Thrombolysis In Myocardial Infarction; CK = creatine kinase; 6MWT = sex-minute walk test; PCI = percutaneous coronary intervention; CABG = coronary artery bypass graft; NS = not significant.