Table 3.
Intent-to-treat analyses adjusting for site only
| Outcome | 2-Month Follow-Up
|
6-Month Follow-Up
|
||
|---|---|---|---|---|
| OR (95% CI) | p-value | OR (95% CI) | p-value | |
| Treatment initiation | ||||
| MAPIT | 2.09 (0.94, 4.67) | 0.07 | 1.78 (0.96, 3.3) | 0.07 |
| MI | 1.93 (0.86, 4.35) | 0.11 | 1.23 (0.64, 2.34) | 0.53 |
|
| ||||
| Heavy alcohol use | ||||
| MAPIT | 1.44 (0.77, 2.68) | 0.25 | 1.13 (0.64, 1.99) | 0.66 |
| MI | 0.83 (0.43, 1.61) | 0.58 | 0.73 (0.41, 1.3) | 0.28 |
|
| ||||
| Marijuana use | ||||
| MAPIT | 1.11 (0.57, 2.16) | 0.76 | 1.57 (0.88, 2.82) | 0.13 |
| MI | 0.85 (0.43, 1.7) | 0.65 | 1.18 (0.65, 2.16) | 0.58 |
|
| ||||
| Hard drug use | ||||
| MAPIT | 1.11 (0.54, 2.26) | 0.78 | 1.26 (0.69, 2.29) | 0.45 |
| MI | 0.93 (0.44, 1.95) | 0.84 | 1.08 (0.58, 2.01) | 0.81 |
OR=odds ratio; CI=confidence interval; MAPIT=motivational computer program; MI=in-person motivational interviewing; reference category is SAU (i.e., research assessments only)