Table 1 Descriptive characteristics of student study population (N = 17 249)
Variable | n | % |
|---|---|---|
Individual-level | Â | Â |
Gender | Â | Â |
 Boys | 8 196 | 47.5 |
 Girls | 9 053 | 52.5 |
Age (years) | Â | Â |
 ≤11 | 2 378 | 13.8 |
 12 | 3 474 | 20.1 |
 13 | 3 331 | 19.3 |
 14 | 3 314 | 19.2 |
 15 | 3 404 | 19.7 |
 ≥16 | 1 348 | 7.8 |
Ethnicity | Â | Â |
 Caucasian | 12 254 | 71.0 |
 Aboriginal | 1 085 | 6.3 |
 East and Southeast Asian | 1 032 | 6.0 |
 South Asian | 445 | 2.6 |
 West Asian and Arab | 212 | 1.2 |
 Black | 318 | 1.8 |
 Other | 578 | 3.4 |
 Mixed | 1 325 | 7.7 |
Family affluence | Â | Â |
 Low (FAS 0–3) | 1 305 | 7.6 |
 Medium (FAS 4–5) | 5 991 | 34.7 |
 High (FAS 6–7) | 9 953 | 57.7 |
Neighborhood is safe for playing | Â | Â |
 1 (disagree/strongly disagree) | 1 256 | 7.3 |
 2 (neither agree/disagree) | 2 904 | 16.8 |
 3 (agree) | 7 860 | 45.6 |
 4 (strongly agree) | 5 229 | 30.3 |
Area-level | Â | Â |
Neighborhood rundown houses | Â | Â |
 Not a problem | 12 989 | 75.3 |
 Minor problem | 3 187 | 18.5 |
 Moderate/major problem | 1 073 | 6.2 |
Neighborhood litter/garbage | Â | Â |
 Not a problem | 5 467 | 31.7 |
 Minor problem | 8 934 | 51.8 |
 Moderate/major problem | 2 848 | 16.5 |
Neighborhood SES | Â | Â |
 Low (lowest tertile) | 4 994 | 29.0 |
 Medium | 6 008 | 34.8 |
 High (highest tertile) | 6 247 | 36.2 |
Urban/rural geographic location | Â | Â |
 Rural area (<10 000) | 4 809 | 27.9 |
 Small city (10 000–99 999) | 7 085 | 41.1 |
 Metropolitan area (≥100 000) | 5 355 | 31.0 |