Table 3.
Logistic regression analysis of factors associated with postoperative complications.
| Variables | Regression coefficient (B) | Standard error (SE) | Wald value | P Value | Odds ratio (OR) | 95% confidence interval (CI) lower limit | 95% confidence interval (CI) upper limit |
|---|---|---|---|---|---|---|---|
| Internal fixation | 1.011 | 0.558 | 3.281 | 0.037 | 2.747 | 1.920 | 8.200 |
| History of smoking | 1.005 | 0.301 | 3.704 | 0.044 | 2.786 | 1.989 | 4.223 |
| Diabetes mellitus | 1.193 | 0.307 | 15.061 | 0.000 | 3.297 | 1.805 | 6.023 |
| Body mass index | 0.831 | 0.286 | 8.426 | 0.004 | 2.296 | 1.310 | 4.024 |
| Incision length | 0.737 | 0.287 | 6.586 | 0.010 | 2.090 | 1.190 | 3.671 |
| ASA classification | 1.055 | 0.300 | 12.397 | 0.000 | 2.872 | 1.596 | 5.166 |
| Surgery duration | 1.135 | 0.637 | 3.170 | 0.035 | 3.110 | 2.892 | 10.843 |
| Postoperative drain duration | 0.995 | 0.474 | 4.400 | 0.036 | 2.705 | 1.067 | 6.855 |
| Intraoperative blood loss | 1.127 | 0.439 | 6.588 | 0.010 | 3.088 | 1.305 | 7.303 |