Table 1. Demographic, Clinical And Procedural Data For Study Patients.
| Group 1 (n = 1500) | Group 2 (n = 500) | ||||
| Parameters | Patient number | % | Patient number | % | p-value |
| Age (mean ± SD) | 63.25 ± 5.72 | 64.83 ± 8.12 | 0.079 | ||
| Female gender | 654 | 43.6 | 214 | 42.8 | 0.46 |
| Cardiac data | |||||
| Acute MI | 93 | 6.2 | 29 | 5.8 | 0.065 |
| Heart failure (pre-operative) | 486 | 32.4 | 144 | 28.8 | 0.058 |
| Risk factors | |||||
| Smoking | 564 | 37.6 | 191 | 38.2 | 0.95 |
| Hypertension | 768 | 51.2 | 254 | 50.8 | 0.73 |
| Morbid obesity | 276 | 18.4 | 96 | 19.2 | 0.66 |
| Dyslipidaemia | 1023 | 68.2 | 339 | 67.8 | 0.97 |
| Family history | 357 | 23.8 | 109 | 21.8 | 0.39 |
| Peripheral vascular disease | 192 | 12.8 | 56 | 11.2 | 0.38 |
| MI (pre-operative) | 648 | 43.2 | 214 | 42.8 | 0.73 |
| DM | 675 | 45.0 | 223 | 44.6 | 0.73 |
| COLD | 333 | 22.2 | 109 | 21.8 | 0.90 |
| CRF | 84 | 5.6 | 26 | 5.2 | 0.13 |
| NYHA class (mean ± SD) | 3.24 ± 7.1 | 3.18 ± 1.2 | 0.65 | ||
| EF (mean ± SD) (pre-operative) | 45.46 ± 5.23 | 46.41 ± 2.31 | 0.067 | ||
| LMCA lesion | 375 | 31.51 | 685 | 29.65 | 0.567 |
Mean ± SD, mean ± standard deviation; MI, myocardial infarction; DM, diabetes mellitus; COLD, chronic obstructive lung disease; CRF, chronic renal failure; NYHA, New York Heart Association; EF, ejection fraction; LMCA, left main coronary artery.