Postoperative complications by metabolic factor.
| Complication | 2 Factors | 3 Factors | 4 Factors | P Value |
| Bowel | 9.5% | 10.9% | 12.2% | <0.001 |
| Bladder | 1.3% | 1.4% | 1.7% | <0.001 |
| Neurologic | 2.3% | 2.3% | 2.5% | 0.82 |
| Dysphagia | 0.1% | 0.1% | 0.0% | 0.06 |
| Cardiac | 0.6% | 0.6% | 0.6% | 0.37 |
| Respiratory | 0.5% | 0.6% | 0.7% | <0.001 |
| Digestive | 0.3% | 0.3% | 0.0% | 0.07 |
| Device | 3.5% | 3.7% | 1.7% | <0.001 |
| Hematoma | 1.0% | 1.2% | 1.0% | <0.001 |
| Anemia | 9.5% | 11.3% | 10.9% | <0.001 |
| Infection | 0.8% | 1.0% | 0.3% | <0.001 |
| Deep vein thrombosis | 0.5% | 0.7% | 1.0% | <0.001 |
| Mortality | 0.3% | 0.2% | 0.7% | <0.001 |
| Length of Stay | 4.25 ± 4.9 | 4.47 ± 4.8 | 4.27 ± 5.2 | <0.001 |
| Total complications | 28.2% | 31.3% | 30.3% | <0.001 |
| Revision surgery | 5.9% | 6.4% | 5.1% | <0.001 |