Table 1.

Demographic characteristics of control and cocaine-addicted participants.

Characteristic	Control (N=13)	Cocaine addicted (N=13)
Age, mean±SD (years)	44.4±6.0	46.6±6.9
Age, range (years)	33-53	30-54
Number of men	13	13
Race
Black	8	10
White	5	3
Cocaine
Lifetime cocaine use, mean±SD (years)	--	11.5±7.7
Nicotine Use
Number of smokers	0	10
Cigarettes/day, mean±SD	--	11.2±8.1 (N=10)
Lifetime cigarettes use (years)	--	14.2±13.1 (N=10)
Alcohol Dependence Disorder	--	6
Cannabis Dependence Disorder	--	1
Opioid Dependence Disorder	--	1