Table 1 Basic characteristics of the sigmoid and rectal surgery groups
| Â | Sigmoid surgery (n = 257) | Rectal surgery (n = 643) | p value | |
|---|---|---|---|---|
Age |  | 65.4 ± 10.2 | 65.1 ± 10.9 | 0.172 |
BMI | < 30 | 152 (63.1%) | 472 (77.6%) | 0.001 |
≥ 30 | 89 (36.9%) | 136 (22.4%) | ||
Gender | Female | 117 (45.5%) | 300 (46.7%) | 0.768 |
Male | 140 (54.5%) | 343 (53.3%) | ||
ASA | I–II | 160 (65.3%) | 430 (70.1%) | 0.167 |
III–IV | 85 (34.7%) | 183 (29.9%) | ||
CCI | ≤ 5 | 180 (70.0%) | 470 (73.1%) | 0.365 |
> 5 | 77 (30.0%) | 173 (26.9%) | ||
T stage | T0–T2 | 86 (33.5%) | 215 (33.4%) | 0.999 |
T3–T4 | 171 (66.5%) | 428 (66.6%) | ||
N stage | 0 | 149 (59.4%) | 392 (61.6%) | 0.822 |
1 | 72 (28.7%) | 172 (27.0%) | ||
2 | 30 (12.0%) | 72 (11.3%) | ||
M stage | 0 | 218 (84.8%) | 592 (92.1%) | 0.002 |
1 | 39 (15.2%) | 51 (7.9%) | ||
TNM stage | 0 | 5 (1.9%) | 7 (1.1%) | 0.006 |
1 | 66 (25.7%) | 160 (24.9%) | ||
2 | 71 (27.6%) | 198 (30.8%) | ||
3 | 75 (29.2%) | 227 (35.3%) | ||
4 | 40 (15.6%) | 52 (7.9%) | ||
Approach of surgery | Open | 78 (30.4%) | 364 (56.6%) | 0.001 |
MI | 179 (69.6%) | 279 (43.4%) | ||
Postoperative complications | No | 208 (80.9%) | 413 (64.2%) | 0.001 |
Yes | 49 (19.1%) | 230 (35.8%) | ||
AL | No | 244 (94.9%) | 574 (89.3%) | 0.007 |
Yes | 13 (5.1%) | 69 (10.7%) | ||