Table 1.

Participant Characteristics

	THC (N = 24)	Placebo (N = 22)
Age	25.95 (5.63)	24.00 (4.01)
Gender (% Female)	58%	64%
Years of Education	15.75 (1.42)	16.32 (1.94)
Ethnicity (% Hispanic)*	42%	9%
Race
% Caucasian	37%	50%
% More than 1 Race or Unknown	27%	5%
% African-American	9%	5%
% Asian	18%	36%
% American Indian/Alaskan Native	9%	0%
% Native Hawaiian/Pacific Islander	0%	4%
Past Month Substance Use
Cannabis use frequency	0.00 (0.00)	0.00 (0.00)
Alcoholic drinks/week	1.20 (0.99)	1.02 (0.74)
Caffeine drinks/day	1.15 (1.11)	1.13 (0.81)
% Used tobacco (averaged cigarettes/day for users)	17% (n=4; 0.40 ± 0.00)	5% (n=1; 0.87 ± 1.10)
Lifetime Substance Use
Number of times used cannabis [range]	1.54 (0.51) [1-2]	1.73 (0.55) [1-3]
Number of times used barbiturates [range]	0.00 (0.00) [0]	0.00 (0.00) [0]
Number of times used stimulants (prescribed or recreational use) [range]	0.00 (0.00) [0]	0.00 (0.00) [0]
Number of times used opiates (recreational use) [range]	0.00 (0.00) [0]	0.00 (0.00) [0]
Number of times used hallucinogens [range]	0.00 (0.00) [0]	0.10 (0.31) [0-1]
Number of times used inhalants [range]	0.00 (0.00) [0]	0.00 (0.00) [0]

Note. All values are means and standard deviations unless otherwise noted;

^*p< .05