Table 1.
Descriptive statistics of the study variables.
| Variable (metric or range) | Mean/% | SD |
|---|---|---|
| Educational attainment, age 21 High school graduation | ||
| High school graduation | ||
| No (0) | 18.70 | -- |
| Yes (1) | 81.30 | -- |
| Mental health and substance use latent class indicators, age 27 | ||
| Major depression symptoms (0 - 9) | 1.50 | 2.96 |
| General anxiety symptoms (0 - 6) | 1.97 | 1.94 |
| Alcohol abuse and dependence symptoms (0 - 11) | 0.92 | 1.84 |
| Nicotine dependence symptoms (0 - 7) | 0.81 | 1.44 |
| Marijuana(cannabis) abuse and dependence symptoms (0 - 10) | 0.38 | 1.23 |
| Later adult socioeconomic status, age 30 | ||
| Constructive engagement (0 - 4) | 3.36 | 1.13 |
| Household income (in thousands) | 26.99 | 23.21 |
| Wealth (0 - 5) | 3.33 | 1.53 |
| Covariates | ||
| Baseline symptoms of psychopathology, ages 10 – 12 | ||
| Internalizing problems (z-scores), ages 10-12 | 0.01 | 0.49 |
| Externalizing behavior problems (z-scores), ages 10-12 | 0.01 | 0.63 |
| Baseline substance use, ages 13 - 14 | 0.00 | 0.79 |
| Childhood low-income status, ages 10 – 12 | 48.90 | -- |
| Gender (Male =1) | 51.00 | -- |
| Ethnic Group | ||
| Caucasian American | 47.20 | -- |
| African American | 25.60 | -- |
| Native American | 5.30 | -- |
| Asian American | 21.90 | -- |
| Intervention | ||
| Full intervention | 19.40 | -- |
| Other interventions | 53.23 | -- |
| Control | 27.36 | -- |