Table 2.
SUMMARY OF SUBSTANCE USE AT BASELINE*
| Variable | Control Group | MI Group | P Value† |
|---|---|---|---|
| Any drugs in past 30 days | 38 (38%) | 52 (44%) | .442 |
| TCUDS ≥3 | 21 (21%) | 36 (31%) | .163 |
| Any alcohol in past 30 days | 78 (78%) | 92 (78%) | .874 |
| Alcohol to intoxication in past 30 days | 49 (49%) | 50 (42%) | .399 |
| AUDIT score ≥8 | 65 (66%) | 66 (58%) | .264 |
| Marijuana use in past 30 days | 31 (31%) | 43 (36%) | .483 |
| Any other drug use in past 30 days | 16 (16%) | 25 (21%) | .422 |
| TCUDS | 1.4 (2.4) | 1.8 (2.6) | .274 |
| Drug days in past 30 | 7.8 (14.3) | 8.7 (15) | .653 |
| Days used most frequent drug in past 30 | 6.3 (10.5) | 6.8 (10.7) | .742 |
| AUDIT score | 12.1 (9.3) | 11.2 (9) | .453 |
| Days used alcohol in past 30 | 7.3 (8.9) | 7.6 (9.6) | .812 |
| Days used alcohol to intoxication in past 30 | 3.6 (6.1) | 4.6 (7.9) | .329 |
Abbreviations: AUDIT, Alcohol Use Disorders Identification Test; TCUDS, Texas Christian University Drug Screen.
*
Table entries are n (5) or mean (SD).
†
P values for categorical outcomes are from χ2 tests of independence. P values for continuous outcomes are from independent-sample t test.