Table 1.
Participant Characteristics
| Characteristics | Count | Proportion |
|---|---|---|
| African American | 585 | 86.3% |
| Male | 362 | 53.4% |
| Female | 316 | 46.6% |
| Classroom Intervention | 230 | 33.9% |
| Family-School Partnership | 229 | 33.8% |
| Control Group | 219 | 32.3% |
| Pre-Intervention Aggression Mean | 1.62 | |
| Polygenic Score Mean | 38.8* |
| First marijuana Use | Control Count | CC Count | FSP Count |
|---|---|---|---|
| Initiation at age 6–9 | 5 | 2 | 3 |
| Initiation at age 10 | 4 | 9 | 6 |
| Initiation at age 11 | 8 | 9 | 9 |
| Initiation at age 12 | 15 | 16 | 20 |
| Initiation at age 13 | 28 | 21 | 28 |
| Initiation at age 14 | 21 | 19 | 29 |
| Initiation at age 15 | 24 | 19 | 25 |
| Initiation at age 16 | 18 | 13 | 18 |
| Initiation at age 17 | 6 | 6 | 3 |
| Initiation at age 18 | 0 | 2 | 1 |
*
Indicates pre-standardization mean