Skip to main content

Table 1 Patient characteristics and operative variables according to droperidol use

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

  All patients (n = 588) Without droperidol (n = 238) With droperidol (n = 350) P value
Age (years) 46 [38–58] 49 [40–61] 45 [37–55] < 0.001
BMI (kg/m2) 21.5 [19.5–24.2] 21.5 [19.5–24.3] 21.6 [19.5–23.8] 0.794
Ever smoker 147 (25%) 66 (28%) 81 (23%) 0.207
ASA-PS (1/1E/2/2E/3/missing) 301/8/263/3/11/2 99/2/125/1/9/2 202/6/138/2/2/0 < 0.001
Malignancy 189 (32%) 69 (29%) 120 (34%) 0.177
Duration of surgery (min) 212 [147–312] 202 [152–289] 214 [147–322] 0.417
Concentration of fentanyl to be filled into ivPCA (μg/mL) 25 [20–25] 25 [20–25] 20 [20–25] 0.108
Total intraoperative fentanyl dose (μg) 250 [150–300] 250 [150–300] 250 [150–300] 0.380
Intraoperative antiemetic use 275 (47%) 80 (34%) 195 (56%) < 0.001
Blood loss (mL) 25 [0–110] 25 [0–110] 25 [0–104] 0.973
Total intravenous anesthesia 95 (16%) 45 (19%) 50 (14%) 0.135
  1. Continuous variables were presented as medians [interquartile range] and compared using the Mann-Whitney U test. Categorical variables were presented as numbers (percentage) and compared using the Pearson chi-square test or Fisher exact test, as appropriate. BMI body mass index, ASA-PS American Society of Anesthesiologists physical status classification, ivPCA intravenous patient-controlled analgesia