Table 3.
Independent Risk Factors for 30-Day Unplanned Reoperation.
| Variable | OR | 95% CI | P |
|---|---|---|---|
| Disseminated cancer (ref = None) | |||
| Yes | 3.44 | 1.46-8.15 | .0049 |
| Weight loss >10% (ref = None) | |||
| Yes | 3.26 | 1.14-9.34 | .0276 |
| Bleeding disorder (ref = None) | |||
| Yes | 1.92 | 1.22-3.03 | .0049 |
| ASA classification (ref = 1, 2) | |||
| 3 | 1.46 | 1.24-1.71 | <.0001 |
| 4, 5 | 1.25 | 0.75-2.08 | .3871 |
| BMI (ref = Normal weight, BMI = 18.5-24.9) | |||
| Underweight, BMI < 18.5 | 0.43 | 0.10-1.81 | .2522 |
| Overweight, BMI 25.0-29.9 | 1.10 | 0.85-1.41 | .4793 |
| Obese, class I, BMI 30.0-34.9 | 1.05 | 0.81-1.36 | .7288 |
| Obese, class II, BMI 35.0-39.9 | 1.50 | 1.14-1.98 | .0037 |
| Obese, class III, BMI ≥40 | 1.83 | 1.36-2.46 | <.0001 |
| Levels fused (ref = Single-level) | |||
| Multilevel | 1.24 | 1.06-1.44 | .0069 |
Abbreviations: OR, odds ratio; CI, confidence interval; ASA, American Society of Anesthesiologists; BMI, body mass index.