Table 2.

Baseline demographic and subject characteristics

Characteristic	Interaction study
	Ketoconazole N = 8	Verapamil N = 15	Rifampicin N = 15
Gender
Male, n (%)	8 (100)	15 (100)	15 (100)
Female, n (%)	0 (0.0)	0 (0.0)	0 (0.0)
Age, years; mean (SD)	23 (3)	32 (12)	33 (10)
Race
White, n (%)	8 (100.0)	7 (46.7)	8 (53.3)
Black/African American, n (%)	0 (0.0)	6 (40.0)	6 (40.0)
American Indian/Alaskan Native, n (%)	0 (0.0)	2 (13.3)	0 (0.0)
Asian, n (%)	0 (0.0)	0 (0.0)	1 (6.7)
Height, m; mean (SD)	1.82 (0.05)	1.77 (0.07)	1.76 (0.04)
Weight, kg; mean (SD)	78.0 (6.9)	86.6 (15.3)	80.3 (10.4)
BMI, kg/m2; mean (SD)	23.5 (1.6)	27.5 (3.4)	25.9 (3.8)

BMI body mass index, SD standard deviation