| N | % | ||
| HTN (200) | −ve | 58 | 29 |
| +ve | 142 | 71.7 | |
| DM (200) | −ve | 94 | 47 |
| +ve | 106 | 53 | |
| Evidence of myocardial ischemia (200) | −ve | 126 | 63.0 |
| +ve | 74 | 37.0 | |
| AF (200) | −ve | 167 | 83.5 |
| +ve | 33 | 16.5 | |
| Cigarette smoking (200) | −ve | 134 | 67 |
| +ve | 66 | 33 |