Primary Outcome: Changes in Alcohol Use Between Groups After Brief Intervention (N = 226)
| Alcohol Use | Treatment n = 114 % (n) | Control n =112 % (n) | tScore | PValue |
|---|---|---|---|---|
| *Repeated measures analysis of variance.14 | ||||
| Consumes ≥3 drinks per day in previous 7 days | ||||
| Baseline | 39 (45) | 46 (51) | 0.92 | NS |
| 6 mo | 18 (20) | 30 (34) | 2.08 | .02 |
| 12 mo | 17 (19) | 35 (39) | 2.98 | .002 |
| 24 mo | 14 (16) | 30 (34) | 2.80 | .01 |
| 36 mo | 14 (16) | 35 (39) | 3.53 | .001 |
| 48 mo | 15 (17) | 20 (22) | 0.70 | NS |
| Overall P < .001* | ||||
| Drinks consumed in previous 7 days | Mean No. (SD) | Mean No. (SD) | ||
| Baseline | 16.2 (11.2) | 18.3 (12.1) | 1.36 | NS |
| 6 mo | 9.4 (10.3) | 14.3 (11.1) | 3.42 | .001 |
| 12 mo | 8.8 (8.8) | 15.0 (13.2) | 4.10 | .001 |
| 24 mo | 8.9 (9.5) | 14.5 (16.6) | 3.16 | .002 |
| 36 mo | 9.4 (12.7) | 13.9 (16.3) | 2.32 | .02 |
| 48 mo | 8.6 (10.2) | 11.6 (12.7) | 1.91 | .06 |
| Overall P < .002* | ||||
| Binge drinking in the previous 30 days | % (n) | % (n) | ||
| Baseline | 96 (110) | 96 (107) | 0.37 | NS |
| 6 mo | 6 (76) | 84 (94) | 3.04 | .01 |
| 12 mo | 6 (75) | 88 (99) | 4.08 | .001 |
| 24 mo | 76 (87) | 85 (95) | 1.64 | NS |
| 36 mo | 70 (80) | 76 (85) | 1.00 | NS |
| 48 mo | 66 (75) | 81 (91) | 2.66 | .01 |
| Overall P < .01* | ||||
| Episodes of binge drinking in previous 30 days | Mean No. (SD) | Mean No. (SD) | ||
| Baseline | 5.9 (4.0) | 6.3 (4.3) | 0.78 | NS |
| 6 mo | 3.1 (4.5) | 4.9 (4.7) | 2.90 | .01 |
| 12 mo | 2.9 (3.7) | 5.3 (4.8) | 4.17 | .001 |
| 24 mo | 4.2 (4.9) | 5.6 (5.1) | 2.17 | .03 |
| 36 mo | 4.2 (5.7) | 5.5 (6.5) | 1.55 | NS |
| 48 mo | 3.6 (4.7) | 4.8 (5.5) | 1.72 | .08 |
| Overall P < .01* | ||||