| Characteristic | Group A N = 168 | Group B N = 73 | p value |
| Male sex, n (%) | 88 (52.4) | 37 (50.7) | 0.809 |
| Mean age (years ± SD) | 59.1 ± 13.3 | 60.7 ± 15.2 | 0.741 |
| Hypertension, n (%) | 124 (73.8) | 54 (74.0) | 0.979 |
| Diabetes mellitus, n (%) | 99 (58.9) | 42 (57.5) | 0.840 |
| Alcohol, n (%) | 38 (22.6) | 20 (27.4) | 0.762 |
| Current smoker, n (%) | 76 (45.2) | 34 (46.5) | 0.848 |
| Unstable angina pectoris, n (%) | 146 (86.9) | 67 (91.8) | 0.278 |
| Acute myocardial infarction, n (%) | 22 (13.1) | 6 (8.2) | 0.277 |