The results among the tropisetron (T), ondansetron (O) and droperidol (D) groups, respectively, were as follows.
The incidences of vomiting during the first 24 hours were 57% (T), 75% (O) and 72.5% (D), (p=0.18).
The incidences of vomiting in the recovery room to 30 minutes later were 28.6% (T), 36.1% (O) and 22.5% (D), (p=0.42).
The incidences of vomiting in the recovery room up to 2 hours were 22% (T), 25% (O) and 17.5% (D), (p=0.72).
The incidences of vomiting in the recovery room from 2 to 6 hours were 11.9% (T), 11.1% (O) and 17.5% (D), (p=0.67).
The incidences of vomiting in the recovery room from 6 to 12 hours were 14.3% (T), 13.9% (O) and 15.4% (D), (p=0.98).
The incidences of vomiting in the recovery room from 12 to 18 hours were 14.3% (T), 22.2% (O) and 27.5% (D), (p=0.34).
The incidences of vomiting in the recovery room from 18 to 24 hours were 28.6% (T), 47.2% (O) and 35.0% (D), (p=0.23).
The percentages of patients with complete response were 23.8% (T), 16.7% (O) and 20.0% (D), (p=0.74).
The median numbers of anti-emetic doses administered were 1 (interquartile range, IQR: 0 - 2) (T), 1 (IQR: 0 - 2) (O) and 1 (IQR: 0 - 2.5) (D), (p=0.82).
The percentages of patients for whom the nausea score was equal to zero (i.e. best possible outcome) were 29.3% (T), 33.3% (O) and 25.0% (D), (p=0.73).
The median overall nausea scores were 20 (IQR: 0 - 31) (T), 20 (IQR: 0 - 45) (O) and 14.5 (IQR: 2 - 47.5) (D), (p=0.99).
The median worst nausea scores up to 2 hours were 0 (IQR: 0 - 29) (T), 0 (IQR: 0 - 30) (O) and 0 (IQR: 0 - 36) (D), (p=0.80).
The median worst nausea scores from 2 to 6 hours were 0 (IQR: 0 - 9) (T), 0 (IQR: 0 - 3) (O) and 0 (IQR: 0 - 20) (D), (p=0.63).
The median worst nausea scores from 6 to 12 hours were 0 (IQR: 0 - 0) (T), 0 (IQR: 0 - 0) (O) and 0 (IQR: 0 - 0) (D), (p=0.75).
The median worst nausea scores from 12 to 18 hours were 0 (IQR: 0 - 3) (T), 0 (IQR: 0 - 50) (O) and 8.5 (IQR: 0 - 65) (D), (p=0.02).
The median worst nausea scores from 18 to 24 hours were 10 (IQR: 0 - 61.5) (T), 24.5 (IQR: 0 - 61.5) (O) and 18 (IQR: 0 - 64) (D), (p=0.46).
The median satisfaction with control of PONV were 100 (IQR: 90 - 100) (T), 97.5 (IQR: 80 - 100) (O) and 99.5 (IQR: 78 - 100) (D), (p=0.46).