Table 1.
Demographic Characteristics of Sample (N = 909)
| Main Sample (N = 546) | Holdout Sample (N = 363) | |||||||
|---|---|---|---|---|---|---|---|---|
| Characteristic | % | M | SD | Range | % | M | SD | Range |
| Age | 18.66 | 1.00 | 18.00–22.00 | 18.69 | 1.05 | 18.00–26.00 | ||
| Sex | ||||||||
| Male | 44.49 | 43.25 | ||||||
| Race | ||||||||
| White | 91.94 | 91.18 | ||||||
| African-American | 5.49 | 5.51 | ||||||
| Other | 2.56 | 3.31 | ||||||
| Relationship Status | ||||||||
| Married | 0.38 | 0.30 | ||||||
| Divorced | 0.19 | 0.00 | ||||||
| Separated | 0.19 | 0.00 | ||||||
| Never married | 98.09 | 97.92 | ||||||
| Living with partner | 1.15 | 1.78 | ||||||
| DSM-5 Alcohol Use Disorder | 57.88 | 2.41 | 2.27 | 0.00–11.00 | 55.92 | 2.37 | 2.17 | 0.00–8.00 |
| Age of first full drink | 15.51 | 1.54 | 10.00–21.00 | 15.49 | 1.57 | 8.00–19.00 | ||
| Age first drunk | 16.02 | 1.42 | 10.00–21.00 | 15.98 | 1.38 | 12.00–19.00 | ||
| Past year consumption | ||||||||
| Maximum drinks in single sitting past year | 11.90 | 6.88 | 1.00–36.00 | 12.05 | 6.84 | 1.00–36.00 | ||
| Drinking days/week | 1.25 | 1.04 | 0.06–5.00 | 1.30 | 1.12 | 0.06–5.00 | ||
| Average drinks per occasion | 4.86 | 2.29 | 1.00–12.00 | 5.10 | 2.45 | 1.00–12.00 | ||
| Days “drunk’/week | 0.79 | 0.88 | 0.00–3.50 | 0.81 | 0.96 | 0.00–5.00 | ||
| Days “buzzed” or “high”/week | 1.09 | 1.13 | 0.00–7.00 | 1.04 | 1.06 | 0.00–5.00 | ||
| Days with 5+/4+ drinks in single sitting/week | 0.90 | 1.01 | 0.00–5.00 | 0.96 | 1.07 | 0.00–5.00 | ||
| Days with 12+ drinks in single sitting/week | 0.31 | 0.76 | 0.00–7.00 | 0.33 | 0.70 | 0.00–5.00 | ||
Note. Individuals who have never been drunk were excluded from “Age first drunk” for the main sample (n = 17; 3.11%) and the holdout sample (n = 9; 2.48%).