TABLE 2.
Outcome variable and predictor variables
| Domains | Variable (n; Cronbach's α) | % or mean (SD) score | |
| Outcome | Young Adult Alcohol Symptom Scale (141; .83) | 2.11 (2.49) | |
| Predictors | |||
| 1) Demographic Characteristics | Gender (141) | 57.45% female | |
| Age at baseline (141) | 15.06 (1.82) | ||
| Age at follow-up (141) | 20.58 (1.89) | ||
| 2) Child/Adolescent Alcohol Involvement | No. of drinks consumed in a typical week (141) | 2.28 (8.70) | |
| Child/adolescent alcohol symptom count (141; .88) | 0.94 (1.93) | ||
| 3) Biological Risk | GABRA2 (number of high-risk alleles) | rs279826 (130) | 18.46% 0 |
| 48.46% 1 | |||
| 3.08% 2 | |||
| rs279871 (126) | 12.70% 0 | ||
| 57.14% 1 | |||
| 30.16% 2 | |||
| GABRG3 (number of high-risk alleles) | rs140679 (132) | 24.24% 0 | |
| 52.27% 1 | |||
| 23.49% 2 | |||
| rs3097493 (127) | 24.41% 0 | ||
| 51.18% 1 | |||
| 24.41% 2 | |||
| rs3097490 (127) | 25.20% 0 | ||
| 50.39% 1 | |||
| 24.41% 2 | |||
| SRE | Alcohol sensitivity (126) | 4.17 (2.17) | |
| 4) Externalizing Behaviors | CD symptom scale (141; .64) | 1.86 (1.86) | |
| ODD symptom scale (141; .69) | 0.89 (1.28) | ||
| ADHD symptom scale (141; .81) | 1.89 (2.20) | ||
| 5) Family Environment | Family type (high risk) (141) | 56.03% | |
| Parent education (141) | 13.77 (2.40) | ||
| Household income (median range) (140) | $40,000-$49,999 | ||
| Religion prohibited alcohol (125) | 12.80% | ||
| Looked older as teen (141) | 33.33% | ||
| Mother worked outside home (141) | 73.05% | ||
| Father away from home frequently (123) | 31.71% | ||
| Relationship with mother (141) | 13.48% fair/poor | ||
| Relationship with father (123) | 27.64% fair/poor | ||
Notes: SRE = Self-Rating of the Effects of Alcohol; CD = conduct disorder; ODD = oppositional defiant disorder; ADHD = attention deficit-hyperactivity disorder.