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Table 2 Multivariable logistic regression analysis assessing independent association between addition of droperidol to ivPCA and PONV

From: Effect of droperidol addition to fentanyl-based intravenous patient-controlled analgesia on postoperative nausea and vomiting: a single-center retrospective cohort study

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
  1. ivPCA intravenous patient-controlled analgesia, PONV postoperative nausea and vomiting