Table 1.

Demographic information on the full sample (N=205).

Variable	N (%)	M (SD)
Age at baseline		13.63 (0.75)
Sex
- Female	84 (41%)
- Male	121 (59%)
Ethnicity
- Asian	10 (4.9%)
- Pacific Islander	1 (0.5%)
- African American	5 (2.4%)
- Caucasian	144 (70.2%)
- More than one race	35 (17.1%)
- Unknown	10 (4.9%)
SES at baseline (Hollingshead Index - parents)		23.22 (14.10)
AUD family history density		0.22 (0.32)
Transitio ns into AUD*	8 (3.9%)
Alcohol use group* (Squeglia et al., 2009)
- Control	4 (2.0%)
- Moderate drinker	18 (8.8%)
- Heavy drinker	183 (89.3%)
Regular tobacco smoker (≥10 cigs/day)*	6 (2.9%)
Marijuana user*
- > 1 day/month	80 (39.0%)
- > 1 day/week	57 (27.8%)

^*Criteria for the specified variable met at any point during the follow-up period