Variable Group I: Placebo-Control Group (n=37) Group II: Ondansetron Study Group (n=39) Overall (n=76)
Age, yr (mean ± standard deviation) 37 ± 11 42 ± 14 39 ± 13
Body Mass Index (mean ± standard deviation) 24 ± 3 25 ± 3 25 ± 3
Sex, n (%)      
Male 18 (49) 21 (54) 39 (51)
Female 19 (51) 18 (46) 37 (49)
Race/ethnicity, n (%)      
Caucasian 36 (97) 34 (87) 70 (92)
African american -- 1 (3) 1 (1)
Asian -- 1 (3) 1 (1)
Native american -- 1 (3) 1 (1)
Hispanic 1 (3) 2 (5) 3 (4)
Patient Smokes, n (%) 2 (5) 2 (5) 4 (5)
History of post-operative nausea/vomiting, n (%) 5 (13) 5 (13) 10 (13)
History of intolerance to narcotics, n (%) 3 (8) 5 (13) 8 (11)
History of motion sickness, n (%) 9 (24) 4 (10) 13 (17)
Table 1: Distribution of demographic characteristics.