Table 1.
Patient, tumor, and treatment characteristics of included patients
| N (%) | |
|---|---|
| Age [mean (range)] | 66 (15–97) |
| Male sex | 1,850 (60) |
| ASA classification | |
| I–II | 2,567 (83) |
| III+ | 369 (12) |
| Missing | 168 (5) |
| Abdominal surgical history, yes | 808 (26) |
| Tumor location (cm) | |
| ≥10 | 1,149 (14) |
| <10 | 1,660 (20) |
| Urgency, acute/urgent | 57 (2) |
| Tumor stage | |
| (Y) pT0/X | 207 (7) |
| pT1 | 269 (9) |
| pT2 | 990 (32) |
| pT3 | 1,533 (49) |
| pT4 | 105 (3) |
| Surgical preoperative treatment | |
| Stoma | 162 (5) |
| Stent | 8 (0.3) |
| Other | 51 (3) |
| Neoadjuvant treatment | |
| 5 × 5 Gy | 1,623 (52) |
| Chemoradiation | 825 (27) |
| Surgical procedure | |
| Laparoscopic resection | 1,393 (45) |
| Hospital type | |
| Teaching hospital | 2,175 (70) |
| Non-teaching hospital | 929 (30) |
| Hospital volume | |
| High (>50/year) | 875 (28) |
| Medium (25–50/year) | 1,490 (48) |
| Low (<25/year) | 739 (24) |
ASA American Society of Anesthesiologists risk score