Ovarian cancer subset – operative outcomes and 30-day complications
| Variable (#, %), (mean+SD) | No-epidural n=990 | Epidural n=1007 | P-value |
| Operative time (minutes) | 187±87 | 202±101 | <0.001 |
| Length of stay (days) | 5.14±4.39 | 5.71±4.28 | <0.001 |
| Readmission (occurrences) | 90 (9.1) | 100 (9.9) | 0.001 |
| 30-day complications (overall) | 643 (64.9) | 784 (77.9) | <0.001 |
| Blood transfusion | 257 (25.9) | 335 (32.3) | <0.001 |
| Cerebrovascular accident/stroke | 2 (0.2) | 5 (0.5) | 0.452 |
| Myocardial infarction | 7 (0.7) | 4 (0.4) | 0.350 |
| Wound disruption | 4 (0.4) | 10 (1.0) | 0.115 |
| Surgical site infection | 50 (5.1) | 80 (7.9) | 0.009 |
| Deep venous thromboembolism | 9 (0.9) | 15 (1.5) | 0.234 |
| Pulmonary embolism | 20 (2.0) | 18 (1.8) | 0.704 |
| Sepsis | 50 (5.1) | 55 (5.5) | 0.681 |
| Pneumonia | 26 (2.6) | 18 (1.8) | 0.202 |
| Urinary tract infection | 32 (3.2) | 37 (3.7) | 0.589 |
| Intestinal obstruction | 61 (6.2) | 59 (5.9) | 0.776 |
| Prolonged NPO/NGT use | 113 (11.4) | 134 (13.3) | 0.199 |
| Prolonged ventilation (>48 hours) | 5 (0.5) | 4 (0.4) | 0.751 |
| Unplanned re-intubation | 7 (0.7) | 10 (1.0) | 0.164 |
NGT, nasogastric tube; NPO, nil per os.