Table.
Characteristics of 283 adolescent male participants
| Demographics | Mean (SD) or % |
|---|---|
| Age (years) | 17.8 (3.5) |
| Race | |
| African American | 98.0% |
| Caucasian | 1.1% |
| Native American | 0.4% |
| School/activities | |
| Currently enrolled in school | |
| <18 years old (n=118) | 99.1% |
| ≥18 years old | 44.3% |
| Ever suspended or expelled | 68.9% |
| Involved in clubs or sports | 71.8% |
| Neighborhood characteristics | Median (IQR) |
| Percent African American1 | 95.2% (55.8–98.0) |
| Percent adults with at least some college education1 | 18.8% (14.7–23.4) |
| Percent unemployed1,2 | 7.5% (5.6–10.7) |
| Median household income1 | $25,192 (20,663–30,174) |
| Median vacant properties per square mile3 | 425.5 (184.8–788.1) |
| Median Neighborhood Environment Scale (range 0–18) | 11.0 (7.0–13.0) |
| Prevalence of adult connection | % |
| Positive adult connection | 86.2% |
1
Measured at census tract based on participant home address from 2010 Census data
2
Defined based on ages 16 and greater
3
Obtained from the University of Pennsylvania Cartographic Modeling lab 2010 neighborhood information system database