Table 1 Multivariate logistic regression analysis of the association between the factors and stenosis in all non-radiotherapy and preoperative radiotherapy patients
Variables | Stenosis, N = 155 | No stenosis, N = 829 | OR | 95% CI | P value |
|---|---|---|---|---|---|
Sex, n (%) | 1.133 | 0.738–1.742 | 0.568 | ||
 Male | 108 (69.7) | 493 (59.5) | |||
 Female | 47 (30.3) | 336 (40.5) | |||
Tumor location, n (%) | 0.900 | 0.600–1.351 | 0.611 | ||
 ≤ 5 cm to anus | 58 (37.4) | 182 (22.0) | |||
 > 5 cm to anus | 97 (62.6) | 647 (78.0) | |||
Smoking, n (%) | 1.572 | 0.996–2.480 | 0.052 | ||
 Yes | 45 (29.0) | 158 (19.1) | |||
 No | 110 (71.0) | 671 (80.9) | |||
Surgery, n (%) | 1.039 | 0.689–1.568 | 0.864 | ||
 Open | 92 (59.4) | 620 (74.8) | |||
 Laparoscopic | 63 (40.6) | 209 (25.2) | |||
Stoma, n (%) | 3.375 | 2.083–5.470 | 0.000* | ||
 Yes | 114 (73.5) | 279 (33.7) | |||
 No | 41 (26.5) | 550 (66.3) | |||
Radiotherapy, n (%) | 2.251 | 1.440–3.519 | 0.000* | ||
 Yes | 110 (72.8) | 314 (38.4) | |||
 No | 41 (27.2) | 504 (61.6) | |||