Table 3 Univariable and multivariable logistic regression analysis of patients undergoing surgery for rectal cancer in Västmanland county between 1996 and 2017 who were admitted for small bowel obstruction (SBO)
From: Risk factors for small bowel obstruction after open rectal cancer resection
| Admission for SBO | Univariable | Multivariable | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | P | OR | 95% CI | P | |
| Age | 0.981 | 0.961–1.002 | 0.082 | 0.981 | 0.958–1.005 | 0.113 |
| Gender | ||||||
| Female | 1 | 0.884 | 1 | 0.941 | ||
| Male | 1.036 | 0.647–1.657 | 1.019 | 0.616–1.688 | ||
| Body mass index | 0.975 | 0.920–1.034 | 0.404 | 0.969 | 0.910–1.031 | 0.321 |
| ASA score | ||||||
| I–II | 1 | 0.535 | 1 | 0.762 | ||
| III–IV | 0.852 | 0.513–1.414 | 0.913 | 0.505–1.648 | ||
| TNM stage | ||||||
| I–II | 1 | 1 | ||||
| III | 1.101 | 0.667–1.818 | 0.707 | 1.148 | 0.682–1.932 | 0.603 |
| IV | 1.437 | 0.736–2.803 | 0.288 | 1.346 | 0.660–2.743 | 0.414 |
| Preoperative radiotherapya | ||||||
| No | 1 | 0.026 | 1 | 0.071 | ||
| Yes | 2.112 | 1.093–4.078 | 1.932 | 0.945–3.951 | ||
| Type of surgery | ||||||
| Resection with anastomosis | 1 | 0.321 | 1 | 0.225 | ||
| Resection without anastomosis | 1.262 | 0.797–1.999 | 1.614 | 0.745–3.495 | ||
| Mobilization of splenic flexure | ||||||
| No | 1 | 0.946 | 1 | 0.271 | ||
| Yes | 1.016 | 0.639–1.617 | 1.519 | 0.722–3.197 | ||
| Resection of other organs | ||||||
| No | 1 | 0.525 | 1 | 0.832 | ||
| Yes | 1.175 | 0.714–1.935 | 0.938 | 0.519–1.696 | ||
| Intraoperative bleeding | 1 | 1.000–1.000 | 0.596 | 1 | 1.000–1.000 | 0.853 |
| Operative time | 1.002 | 0.999–1.005 | 0.232 | 1 | 0.996–1.004 | 0.865 |
| Re-laparotomy | ||||||
| No | 1 | 0.021 | 1 | 0.026 | ||
| Yes | 2.853 | 1.174–6.936 | 2.824 | 1.129–7.065 | ||