Table 2.
Participant Drug Use at 12-Month Assessment Visit and Consistency of Use Across Time
| Substance | Percentage users (N = 80) | Proportion of heavy usea | Proportion of consistent useb |
|---|---|---|---|
| Alcohol | 40% (N = 32) | 34.4% (N = 11) | 78.1% (N = 25) |
| Marijuana | 32.5% (N = 26) | 15.4% (N = 4) | 65.4% (N = 17) |
| Cocaine | 50% (N = 40) | 27.5% (N = 11) | 92.5% (N = 37) |
| Heroin | 3.75% (N = 3) | 66.7% (N = 2) | 33.3% (N = 1) |
| Speedball | 2.5% (N = 2) | 50% (N = 1) | 50% (N = 1) |
a
Proportion of users that used the substance more than daily.
b
Proportion of substance users at 12 months also reporting use at baseline.