Table 1. Participant Demographics and Current and Lifetime Drug Use (N=90).

	Percent (N) or mean±SEM
Gender
Female/Male	50/40
Race
Caucasian	59% (53)
African-American	18% (16)
Asian	13% (12)
Other	10% (9)
Age (years)	24.6 (3.1)
Education (years)	15.0 (1.8)
BMI	22.6 (1.2)
Current drug use
Caffeinated beverages per day	1.9 (0.4)
Cigarettes per week	0.3 (1.9)
Alcohol beverages per week	6.8 (0.6)
Lifetime drug use (ever used; nonmedical use only)
Marijuana	81% (73)
Opiates	51% (46)
Stimulants	32% (29)
Hallucinogens	27% (24)
MDMA	21% (19)
Sedatives	10% (9)