Table 2.
Baseline demographics and primary drinking outcome variables for six study groups (n = 509)
| Timeline | No Timeline | |||||
|---|---|---|---|---|---|---|
| Variable | Assessment only | Basic BMI | Enhanced BMI | Assessment only | Basic BMI | Enhanced BMI |
| Sample Size | 89 | 87 | 86 | 81 | 85 | 81 |
| Gender (% female) | 67% | 64% | 64% | 67% | 65% | 64% |
| Ethnicity (% White) | 85% | 92% | 93% | 87% | 90% | 88% |
| Year (% freshmen) | 55% | 51% | 58% | 54% | 51% | 63% |
| Residence (% on campus) | 87% | 86% | 87% | 78% | 88% | 91% |
| Greek status (% non-Greek) | 80% | 80% | 83% | 75% | 74% | 79% |
| Age | 19.3 (0.7) | 19.3 (0.8) | 19.2 (0.7) | 19.2 (0.8) | 19.3 (0.9) | 19.0 (0.8) |
| Drinks/week | 18.1 (8.9) | 19.6 (12.4) | 18.7 (13.2) | 19.3 (11.2) | 20.7 (16.0) | 19.2 (13.0) |
| Drinks/drinking day | 5.5 (2.3) | 5.5 (2.2) | 5.7 (2.5) | 5.8 (2.6) | 5.7 (3.4) | 5.8 (3.3) |
| Heavy drinking frequency | 6.8 (3.8) | 7.4 (5.0) | 6.7 (3.7) | 7.7 (4.1) | 7.6 (5.2) | 7.0 (4.2) |
| Peak BAC | 0.22 (0.09) | 0.22 (0.09) | 0.21 (0.09) | 0.21 (0.09) | 0.21 (0.09) | 0.21 (0.09) |
| RAPI total | 7.8 (6.0) | 7.9 (7.9) | 6.6 (6.2) | 8.3 (5.7) | 6.6 (6.0) | 7.3 (5.5) |
Note. Values indicate the means (and standard deviations) unless otherwise noted. None of the between group differences were significant. BMI = brief motivational intervention; BAC = blood alcohol concentration; RAPI = Rutgers Alcohol Problems Index.