Table 1.
Summary of Descriptive Statistics
| Sample |
|||||
|---|---|---|---|---|---|
| Variable | 1 (n = 28) |
2 (n = 14) |
3 (n = 60) |
4 (n = 172) |
Overall (N = 274) |
| Age | |||||
| Observed Range | 15 – 19 | 15 – 24 | 15 – 24 | 21 – 66 | 15 – 66 |
| M (SD) | 18.1 (1.1) | 19.0 (0.9) | 20.1 (1.8) | 29.3 (11.7) | 25.6 (10.4) |
| Sex, # (%) female | 16 (57) | 6 (43) | 30 (50) | 73 (42) | 125 (46) |
| Race, # (%) | |||||
| Caucasian | 20 (71.4) | 10 (71.4) | 35 (58.3) | 159 (92.4) | 224 (81.8) |
| African-American | 3 (10.7) | 2 (14.3) | 15 (25.0) | 7 (4.0) | 27 (10.0) |
| American Indian | 1 (3.5) | 0 | 0 | 1 (0.5) | 2 (0.01) |
| Asian/Pacific Islander | 3 (10.7) | 1 (7.1) | 4 (6.7) | 1 (0.5) | 9 (0.03) |
| Hispanic, # (%) | 5 (17.9) | 3 (24.1) | 11 (18.3) | 3 (0.2) | 22 (8.0) |
| Alcohol Use Disorder, # (%) | |||||
| Abuse | 8 (28.6) | 1 (7.1) | 7 (11.7) | 35 (20.3) | 51 (18.6) |
| Dependence | 13 (46.4) | 9 (64.2) | 10 (16.7) | 102 (59.3) | 134 (48.9) |
| Baseline drinking levels a | |||||
| % drinking days, M (SD) | 28.4 (16.9) | 29.2 (14.1) | 18.7 (14.0) | 65.6 (16.7) | 49.6 (26.4) |
| % heavy drinking days, M (SD) | 15.6 (18.6) | 12.8 (10.1) | 10.8 (10.4) | 45.2 (19.3) | 32.9 (23.5) |
| Drinks per drinking day, M (SD) | 4.8 (3.4) | 6.0 (4.1) | 5.1 (2.8) | 7.3 (3.3) | 6.5 (3.4) |
| Included monitoring days | |||||
| Observed range | 5 – 13 | 4 – 10 | 6 – 8 | 5 – 14 | 4 – 14 |
| M (SD) | 6.61 (1.55) | 6.86 (1.61) | 7.83 (0.44) | 6.95 (1.60) | 7.46 (1.13) |
| Drinking days in monitoring period | |||||
| Observed range | 1 – 7 | 1 – 5 | 1 – 7 | 1 – 8 | 1 – 8 |
| M (SD) | 2.46 (1.43) | 2.21 (1.31) | 2.12 (1.35) | 5.10 (1.85) | 4.03 (2.18) |
| Drinks per drinking day, M (SD)b | 4.80 (4.54) | 3.50 (1.80) | 4.22 (3.01) | 7.18 (3.94) | 6.10 (3.99) |
Note
a
Derived from the 90-day Timeline Follow-Back interview administered at baseline.
b
Average drinks per drinking day during the monitoring period.