Table 1.
Subject characteristics, expressed as percents or means (standard deviation).
| Variable | Modafinil N=47 | Placebo N=47 |
|---|---|---|
| Age | 47 (8.1) | 46 (9.4) |
| % Male | 81% | 81% |
| Race | ||
| African American | 81% | 68% |
| Caucasian | 19% | 32% |
| Years of education | 12.9 (2.0) | 12.9 (2.4) |
| Days of cocaine use in past 30 days | 12 (8) | 12 (8) |
| Years of cocaine use, lifetime | 13 (8) | 12 (8) |
| Days of alcohol use in past 30 days | 5 (7) | 5 (8) |
| $ spent for drugs | $588 (549) | $616 (737) |
| $ spent for alcohol | $13 (20) | $23 (36) |
| Route of cocaine use | ||
| Intranasal | 11% | 17% |
| Smoked | 89% | 79% |
| Injected | 0% | 4% |
| ASI Composite Drug Score | .230 (.055) | .240 (.075) |
| ASI Composite Alcohol Score | .066 (.099) | .086 (.117) |
| ASI Composite Employment Score | .657 (.274) | .671 (.250) |
| ASI Composite Legal Score | .046 (.135) | .065 (.162) |
| ASI Composite Family/Social Score | .143 (.181) | .096 (.160) |
| ASI Composite Psychiatric Score* | .112 (.156) | .052 (.110) |
| ASI Composite Medical Score | .256 (.326) | .251 (.330) |
*
significantly different (Mann Whitney Z= −2.1 P= .04)