Table 1.
Descriptive Statistics
| Cohort #1 (n=27) | Cohort #2 (n=20) | Difference | P | |
|---|---|---|---|---|
| Age | 21 (20, 23) | 21 (20, 22) | U = 267.0 | .95 |
| Female gender | 9 (33%) | 9 (45%) | χ2 = 0.7 | .42 |
| Race | ||||
| White | 21 (78%) | 19 (95%) | Fisher’s Exact | .21 |
| Asian | 1 (4%) | 0 (0%) | ||
| Black | 3 (11%) | 0 (0%) | ||
| Multiple | 1 (4%) | 0 (0%) | ||
| Other | 1 (4%) | 1 (5%) | ||
| Ethnicity (non-Hispanic) | 23 (85%) | 15 (75%) | χ2 = 0.8 | .38 |
| Marital status (single) | 27 (100%) | 20 (100%) | Identical | Identical |
| Employment status | ||||
| Student | 16 (59%) | 15 (75%) | χ2 = 1.3 | .26 |
| Employed full-time | 5 (19%) | 4 (20%) | ||
| Employed part-time | 3 (11%) | 1 (5%) | ||
| Unemployed | 3 (11%) | 0 (0%) | ||
| Current college enrollment | 16 (59%) | 15 (75%) | χ2 = 1.3 | .26 |
| Drinking during 14 days before baseline | ||||
| Average drinks per drinking day | 5 (4, 7) | 5 (4, 6) | U = 243.5 | .57 |
| % of days with drinking | 50 (43, 64) | 64 (45, 71) | U = 317.5 | .30 |
| % of days with heavy drinking | 29 (29, 43) | 36 (29, 48) | U = 287.0 | .70 |
Given as median (interquartile range) or n (%).