Table 2.
Intervention variables for all individuals
| Variable | Intervention (n = 681) | Control (n = 663) |
|---|---|---|
| Management variables—preoperative | ||
| Antibiotics | 645 (94.7) | 524/644 (81.4) |
| Management variables—anaesthesiological | ||
| Epidural | 484 (71.1) | 444 (67.0) |
| Arterial line | 578 (84.9) | 244 (36.8) |
| Norepinephrine | 586/679 (86.3) | 474 (71.5) |
| Rapid sequence intubation | ||
| Propofol | 501 (79.0) | 550 (83.5) |
| Ketamine | 61 (9.6) | 60 (9.1) |
| Propofol + ketamine | 72 (11.4) | 49 (7.4) |
| Missing | 47 | 4 |
| Goal-directed fluid therapy | 527/679 (77.6) | * |
| Anaesthesia complication | ||
| No complication | 601 (91.6) | 573 (87.2) |
| Yes, aspiration | 11 (1.7) | 5 (0.8) |
| Yes, other complication | 44 (6.7) | 79 (12.0) |
| Missing | 25 | 6 |
| Postoperative care | ||
| Recovery unit, time spent (h), mean(s.d.), median (range) | 6.85(4.51), 5.22 (1.53–26.85) (n = 563) | 7.64(4.67), 5.87 (0.43–27.07) (n = 545) |
| Time-point variables | ||
| Degree of urgency | ||
| Emergency | 24 (3.5) | 23 (3.5) |
| Within 2 h | 372 (54.6) | 254 (38.3) |
| Within 6 h | 285 (41.9) | 386 (58.2) |
| Time from registration to the start of surgery (h), mean(s.d.), median (range) | 3.22(1.96), 2.73 (−0.52–17.3) (n = 681) | 3.80(3.36), 3.03 (0.08–54.12) (n = 663) |
| Total surgery time (min), mean(s.d.), median (range) | 94.0(48.2), 84 (12–335) (n = 681) | 90.7(48.8), 81 (20–375) (n = 663) |
| Perioperative care competence | ||
| Surgical | ||
| Registrar | 34/675 (5.0) | 56/660 (8.5) |
| Specialist | 177/675 (26.2) | 183/660 (27.7) |
| Consultant | 464/675 (68.7) | 421/660 (63.8) |
| Anaesthesiologist | ||
| Registrar | 207/679 (30.5) | 253/658 (38.4) |
| Specialist | 155/679 (22.8) | 127/658 (19.3) |
| Consultant | 317/679 (46.7) | 278/658 (42.2) |
| Surgical procedures | ||
| Primary operation | 602 (88.4) | 572 (86.3) |
| Reoperation | 79 (11.6) | 91 (13.7) |
| Initial laparoscopy | 45 (6.6) | * |
| Bowel resection | ||
| Any bowel resection | 240 (35.2) | 239 (36.0) |
| Type of resection | ||
| Colon | 117 (49.0) | 142 (59.4) |
| Small intestine | 110 (46.0) | 83 (34.7) |
| Colon and small intestine | 12 (5.0) | 14 (5.9) |
| Missing | 1 | 0 |
| Anastomosis | 114/679 (16.8) | 149 (22.5) |
| Stoma formation | 165/679 (24.3) | 169 (25.5) |
| Adhesiolysis | 314/678 (46.3) | 299 (45.1) |
| Extirpation organ | ||
| None | 369 (98.2) | 648 (97.7) |
| Part of/the whole stomach | 3 (0.4) | 4 (0.6) |
| Spleen | 5 (0.7) | 5 (0.8) |
| Part of liver | 0 (0.0) | 2 (0.3) |
| Uterus and/or ovaries | 3 (0.4) | 3 (0.5) |
| Other | 1 (0.1) | 1 (0.2) |
Values are n (%) unless otherwise indicated. *Not available for controls.