Table 1.

Participant characteristics

	Placebo (n = 10)	Baclofen (n = 10)	p value
Basic demographics
Age (years) [mean (SEM)]	40.20 (1.93)	42.00 (1.26)	0.45
Education (years) [mean (SEM)]	12.80 (0.35)	12.75 (0.86)	0.96
Estimated IQ (WASI) [mean (SEM)]	98.40 (2.01)	92.00 (6.19)	0.32
Race (Number)
Black	8	10
Other	2	0
Prior drug use [mean (SEM)]
Cocaine use (years)	17.10 (1.66)	17.20 (1.31)	0.96
Cocaine use (days in past 30)	17.20 (3.26)	20.20 (2.69)	0.49
Alcohol use (years)	12.40 (3.23)	11.40 (3.61)	0.84
Alcohol use (days in past 30)	6.70 (2.99)	8.70 (3.75)	0.68
Marijuana use (years)	10.9 (2.45)	7.7 (3.28)	0.44
Marijuana use (days in past 30)	2.1 (0.82)	2.9 (2.0)	0.73