Table 4.
Risk factors of severe complications or fistula recurrence – multivariate analysis.
| Variable | Odds ratio | 95% confidence interval | p-value |
|---|---|---|---|
| Preoperative parameters | |||
| Number of fistulas >1 | 8.20 | 1.05–63.83 | 0.044 |
| Fistula output on the day before surgery >500 ml/day | 2.84 | 0.25–31.77 | 0.395 |
| WBC > 11×109/l | 7.34 | 0.18–286.29 | 0.286 |
| Time since admission to definitive surgery | 1.01 | 0.97–1.04 | 0.488 |
| APACHE II score | 0.79 | 0.57–1.09 | 0.161 |
| Time since last operation | 0.99 | 0.99–1.00 | 0.434 |
| Intraoperative parameters | |||
| Duration of the systolic blood pressure <80 mmHg | 1.03 | 0.99–1.08 | 0.084 |
| Operative time | 1.00 | 0.98–1.02 | 0.827 |
| Sum of physiological points on CR-POSSUM scale | 1.16 | 0.48–2.81 | 0.728 |