Table III.
Univariate and multivariate analysis of risk factors for postoperative complications.
| Univariate | Multivariate | |||||
|---|---|---|---|---|---|---|
| Variables | OR | 95% CI | P-value | OR | 95% CI | P-value |
| Age, >75 vs. <75 years | 1.62 | 0.66–3.96 | 0.2939 | – | – | – |
| Gender, male/female | 1.22 | 0.51–2.93 | 0.6559 | – | – | – |
| Body mass index >25 vs. <25 kg/m2 | 1.55 | 0.58–4.16 | 0.3865 | – | – | – |
| ASA score, 2–3 vs. 1 | 3.45 | 1.21–9.82 | 0.0204a | 2.58 | 0.85–7.78 | 0.0938 |
| Cardiovascular disease | 1.48 | 0.56–3.93 | 0.4326 | – | – | – |
| Pulmonary disease | 4.69 | 1.58–14.00 | 0.0055a | 3.21 | 1.02–10.14 | 0.0470a |
| Prior abdominal surgery, yes vs. no | 0.572 | 0.12–2.66 | 0.4760 | – | – | – |
| Tumor location, rectum vs. colon | 1.22 | 0.411–3.62 | 0.7200 | – | – | – |
| Bleeding, >43 vs. <43 g | 1.697 | 0.68–4.23 | 0.2567 | – | – | – |
| Operative time, >230 vs. 230 min | 0.668 | 0.28–1.62 | 0.3730 | – | – | – |
a
Statistically significant differences. ASA, American Society of Anesthesiology; OR, odds ratio; CI, confidence interval.