Age | 43 ± 6 years |
Gender | 17 males, 1 female |
Ethnicity | 15 African Americans, 3 caucasians |
Education | 13 ± 2 years of education |
Years of cocaine use | 15 ± 7 years |
Route of administration | 18 smoked cocaine |
Dose used | 2.8 ± 1.6 g/d |
Days since last cocaine use | 2 ± 1.4 d (range,1 and 6 d) |
Cigarette smokers | 15 current smokers |