Table 4. Factors for mortality in subgroup analysis.
| Younger group | Older group | |||
| Odds ratio | p-value | Odds ratio | p-value | |
| COBD | 0.035 | 0.851 | 0.015 | 0.903 |
| CRF | 0.168 | 0.682 | 4.205 | 0.040 |
| Re-operation | 0.949 | 0.330 | - | - |
| EF (%) | 0.865 | 0.352 | 0.110 | 0.759 |
| Age (years) | 0.122 | 0.727 | 1.034 | 0.741 |
| EuroSCORE | 14.555 | 0.000 | 8.418 | 0.309 |
| CPB time (min) | 7.698 | 0.006 | 0.471 | 0.004 |
| Cross-clamp time (min) | 2.048 | 0.152 | 1.542 | 1.542 |
| BMI (kg/m2) | 0.703 | 0.402 | 0.384 | 0.214 |
| Emergency operation | 5.401 | 0.020 | 0.400 | 0.536 |
| Female gender | 8.850 | 0.003 | 1.725 | 0.527 |
| HT | 2.007 | 0.157 | 0.095 | 0.189 |
| MI | 0.427 | 0.513 | 0.004 | 0.758 |
| DM | 7.477 | 0.006 | 0.560 | 0.949 |
| ICU time | 4.947 | 0.026 | 0.038 | 0.454 |
| Levosimendan | 0.228 | 0.633 | 0.131 | 0.845 |
| CVA | 1.634 | 0.201 | 0.021 | 0.717 |
| LMCA | 0.955 | 0.329 | 0.021 | 0.885 |
CPB time: cardiopulmonary bypass time, COPD: chronic obstructive pulmonary disease, CRF: chronic renal failure, HT: hypertension, DM: diabetes mellitus, ICU: intensive care unit, CVA: previous cerebrovascular accident, BMI: body mass index, LMCA: left main coronary artery disease.