Table 4.
Intent-to-treat analyses adjusting for Covariates Related to Retention in the Study
| Outcome | 2-Month Follow-Up
|
6-Month Follow-Up
|
||
|---|---|---|---|---|
| OR (95% CI) | p-value | OR (95% CI) | p-value | |
| Treatment initiation | ||||
| MAPIT | 2.40 (1.06, 5.47) | 0.04 | 1.84 (0.98, 3.46) | 0.06 |
| MI | 2.15 (0.94, 4.91) | 0.07 | 1.28 (0.67, 2.46) | 0.46 |
|
| ||||
| Heavy alcohol use | ||||
| MAPIT | 1.32 (0.70, 2.48) | 0.39 | 1.03 (0.58, 1.84) | 0.91 |
| MI | 0.81 (0.42, 1.58) | 0.54 | 0.70 (0.39, 1.25) | 0.23 |
|
| ||||
| Marijuana use* | ||||
| MAPIT | 1.03 (0.52, 2.05) | 0.92 | 1.50 (0.83, 2.73) | 0.18 |
| MI | 0.86 (0.43, 1.73) | 0.68 | 1.14 (0.62, 2.11) | 0.67 |
|
| ||||
| Hard drug use** | ||||
| MAPIT | 1.22 (0.59, 2.53) | 0.59 | 1.42 (0.76, 2.63) | 0.27 |
| MI | 1.09 (0.52, 2.27) | 0.82 | 1.29 (0.69, 2.41) | 0.43 |
OR=odds ratio; CI=confidence interval; MAPIT=motivational computer program; MI=in-person motivational interviewing; reference category is SAU (i.e., research assessments only)
*
Stable housing significant: 2MFU marijuana use (p=0.01); 6MFU marijuana use (p=0.04)
**
Treatment order significant: 6MFU hard drug use (p=0.02)