Table 2 Multivariable logistic regression analysis assessing independent association between addition of droperidol to ivPCA and PONV
Variable | Adjusted OR (95% CI) | P value |
|---|---|---|
Addition of droperidol to ivPCA | 0.383 (0.260–0.563) | < 0.001 |
Age (per 1 year) | 0.991 (0.977–1.003) | 0.165 |
Ever smoker | 0.600 (0.403–0.895) | 0.012 |
Duration of surgery (per min) | 1.000 (0.999–1.001) | 0.833 |
Intraoperative antiemetic use | 0.976 (0.667–1.428) | 0.899 |
Concentration of fentanyl to be filled into ivPCA (per μg/mL) | 0.960 (0.908–1.015) | 0.152 |
Total intravenous anesthesia | 0.513 (0.316–0.831) | 0.007 |