Table 1.
Descriptive statistics.
| Variables | Mean (Range) or % |
|---|---|
| Exposure Variables: | |
| % Trees (1000 m) | 18.1 (1.5–55.1) |
| % Trees (300 m) | 18.2 (1.1–64.9) |
| % Grass (1000 m) | 10.3 (0.9–40.5) |
| % Grass (300 m) | 9.2 (0.0–57.9) |
| % Total vegetation (1000 m) | 28.3 (4.9–76.9) |
| % Total vegetation (300 m) | 27.4 (1.3–91.5) |
| Outcome Variables: | |
| Self-reported health | |
| “Excellent” | 14.4 |
| “Very good” | 32.8 |
| “Good” | 34.3 |
| “Fair” | 15.5 |
| “Poor” | 3.0 |
| Covariates: | |
| Age | 44.7 (18–90) |
| Sex | |
| Male | 36.4 |
| Female | 63.6 |
| Ethnicity | |
| Hispanic | 20.3 |
| Non-Hispanic | 79.7 |
| Race | |
| White | 54.6 |
| Non-White | 45.4 |
| Educational Level | |
| Less than high school | 4.3 |
| High school graduate to less than BA | 49.0 |
| BA or higher | 46.7 |
| Income | |
| <$23,000 | 24.3 |
| $23,000 to <$46,000 | 23.8 |
| $46,000 to <$70,000 | 18.7 |
| $70,000 to <$93,000 | 13.2 |
| $93,000 to <$135,000 | 10.1 |
| ≥$135,000 | 10.0 |
| How long lived in the neighborhood | |
| <1 year | 6.4 |
| 1 to <5 years | 20.1 |
| 5 to <10 years | 15.1 |
| 10+ years | 58.4 |
| Survey frame | |
| Cell phone | 9.4 |
| Landline | 32.0 |
| Online | 58.6 |
| % Census tract unemployed | 9.7 (0.0–100.0) |
| % of Census tract living below twice the FPL | 34.7 (0.0–100.0) |
| NO2 within 300 m (ppb) | 25.4 (12.6–51.4) |
| NO2 within 1000 m (ppb) | 24.8 (13.9–46.8) |
BA: bachelor’s degree, FPL: Federal Poverty Level.