Table 1.
Alcohol and Drug Use Descriptive Statistics
| Criterion variable | Full sample (N = 192) |
|---|---|
| Average daily alcohol consumption (ounces ethanol; M, SD) | 0.5 (0.7) |
| Episodes of binge drinking in past month (M, SD) | 1.5 (2.6) |
| Episodes of intoxication in past year (M, SD) | 18.4 (32.2) |
| Age of onset of regular alcohol usea (M, SD) | 18.2 (2.0) |
| Ever consumed alcohol (%) | 83.3 |
| Ever consumed an illicit substanceb (%) | 46.1 |
a
At least once a month
b
Includes marijuana, PCP, LSD, cocaine, amphetamines, tranquilizers, barbiturates, heroin, analgesics, inhalants, designer drugs, steroids, and GHB.