Table 2.
ASSIST scores at 3 months (N=359)
| In-Person BI | Computer BI | Mean Difference | p-value | |
|---|---|---|---|---|
| mean (SE) | mean (SE) | (95% CI) | ||
| ASSIST Scores | ||||
| Global | ||||
| Global ASSIST score (N=359) | 29.56 (.93) | 27.77 (.93) | −1.79 (−4.37 – 0.80) | .175 |
| Substance-Specific1 | ||||
| Alcohol (n=101) | 13.74 (1.00) | 11.28 (1.22) | −2.47 (−5.62 – 0.69) | .124 |
| Marijuana (n=314) | 11.04 (.43) | 9.31 (.43) | −1.73 (−2.91 – −0.55) | .004 |
| Cocaine (n=66) | 11.02 (1.39) | 6.54 (1.27) | −4.48 (−8.26 – −0.71) | .021 |
| Amphetamines (n=40) | 8.97 (2.38) | 6.35 (1.94) | −2.62 (−8.88 – 3.65) | .403 |
| Sedatives (n=43) | 6.07 (1.48) | 4.19 (1.20) | −1.88 (−5.73 – 1.98) | .331 |
| Opioids (n=72) | 7.99 (1.41) | 6.56 (1.26) | −1.43 (−5.23 – 2.37) | .455 |
1
Substance-specific ASSIST scores are restricted to participants scoring as moderate risk for the substance at baseline.