| Controls (n = 69) | Cocaine-dependent (n = 93) | ||
---|---|---|---|---|
 | Mean/n | SD/% | Mean/n | SD/% |
Age (years) | 34.6 | 7.5 | 40.0 | 6.8 |
Male | 33 | 47.8Â % | 67 | 72Â % |
Race | ||||
 White | 36 | 52.2 % | 22 | 23.7 % |
 Black | 20 | 29.0 % | 69 | 74.2 % |
 Asian | 3 | 4.3 % | 0 | 0.0 % |
 Hispanic | 10 | 14.5 % | 2 | 2.2 % |