Table 1.
Complication subtypes and CCI by severity group.
| Complication | Total n (%) | Severe (n=132) | Minor (n=800) | P value |
|---|---|---|---|---|
| Anastomotic leak | 15 (1.6) | 15 (11.4) | 0 (0.0) | <0.001 |
| Surgical-site infection | 51 (5.5) | 35 (26.5) | 16 (2.0) | <0.001 |
| Intra-abdominal infection | 33 (3.5) | 18 (13.6) | 15 (1.9) | <0.001 |
| Sepsis | 6 (0.6) | 6 (4.5) | 0 (0.0) | <0.001 |
| Pulmonary infection | 47 (5.0) | 35 (26.5) | 12 (1.5) | <0.001 |
| Hypoxaemia | 30 (3.2) | 26 (19.7) | 4 (0.5) | <0.001 |
| Respiratory failure | 6 (0.6) | 6 (4.5) | 0 (0.0) | <0.001 |
| Ileus | 16 (1.7) | 16 (12.1) | 0 (0.0) | <0.001 |
| Arrhythmia | 14 (1.5) | 10 (7.6) | 4 (0.5) | <0.001 |
| Hepatic insufficiency | 7 (0.8) | 7 (5.3) | 0 (0.0) | <0.001 |
| Renal injury | 5 (0.5) | 5 (3.8) | 0 (0.0) | <0.001 |
| 30-day mortality | 11 (1.2) | 11 (8.3) | 0 (0.0) | <0.001 |
| CCI, median (IQR) | 0 (0–8.7) | 20.9 (8.7–33.5) | 0 (0–0) | <0.001 |
Breakdown of postoperative complications and Comprehensive Complication Index (CCI) by severity group. Fisher exact test; patients may have more than one complication. Rare events (<0.5%) are summarised in the Supplement.