Table 1 Demographics of subject counties (based on respondents only), California (from CHIS 2001) and the entire USA (from the 2001 National Health Interview Survey [34]).
From: Associations between street connectivity and active transportation
Variable | Los Angeles* | San Diego* | Combined* | California* | USA |
|---|---|---|---|---|---|
Area (sq.km) | 12,308 | 11,721 | 24,039 | 410,000 | 9,631,000 |
Population | 9,662,000 | 2,813,000 | 12,475,000 | 34,400,000 | 285,000,000 |
Sample size | 8,547 | 1,891 | 10,438 | 56,270 | 69,244 |
Gender (%) | Â | Â | Â | Â | Â |
   M | 50.7 (0.4) | 50.3 (0.7) | 50.6 (0.3) | 48.9 (0.0) | 47.9 (0.1) |
   F | 49.3 (0.4) | 49.7 (0.7) | 49.4 (0.7) | 51.1 (0.0) | 52.1 (0.1) |
Race/ethnicity (%) | Â | Â | Â | Â | Â |
   Non-Hispanic White | 39.4 (0.4) | 61.2 (0.8) | 44.6 (0.3) | 50.2 (0.0) | 73.6 (0.4) |
   Non-Hispanic Black | 9.9 (0.2) | 5.1 (0.5) | 8.8 (0.2) | 5.9 (0.0) | 11.2 (0.3) |
   Hispanic | 38.2 (0.4) | 22.8 (0.8) | 34.5 (0.4) | 29.3 (0.0) | 10.6 (0.2) |
   Other | 12.5 (0.3) | 10.8 (0.6) | 12.1 (0.2) | 14.5 (0.0) | 4.6 (0.2) |
Age | Â | Â | Â | Â | Â |
18-39 | 47.6 (0.4) | 47.3 (0.8) | 47.5 (0.4) | 45.7 (0.0) | 39.6 (0.3) |
40-59 | 33.7 (0.4) | 32.8 (0.7) | 33.5 (0.4) | 34.9 (0.1) | 38.1 (0.3) |
60+ | 18.8 (0.3) | 19.8 (0.8) | 19.0 (0.3) | 19.4 (0.1) | 22.3 (0.2) |
Income (% of poverty level) | Â | Â | Â | Â | Â |
   < 100 | 17.2 (0.5) | 10.6 (1.0) | 15.6 (0.4) | 15.7 (0.2) | 10.0 (0.2 |
   100-200 | 21.7 (0.6) | 21.0 (1.2) | 21.5 (0.6) | 20.4 (0.3) | 16.8 (0.3 |
   200-300 | 14.0 (0.5) | 14.2 (1.0) | 14.0 (0.5) | 14.2 (0.2) | 17.2 (0.3 |
   300+ | 47.2 (0.7) | 54.2 (1.5) | 48.8 (0.7) | 49.7 (0.2) | 56.0 (0.4 |
Education (%) | Â | Â | Â | Â | Â |
<HS | 20.9 (0.7) | 14.6 (1.1) | 20.9 (0.5) | 21.4 (0.1) | 16.7 (0.2) |
HS graduate | 23.2 (0.5) | 25.0 (1.2) | 23.2 (0.5) | 23.3 (0.1) | 30.5 (0.3) |
> HS | 55.9 (0.7) | 60.4 (1.3) | 55.9 (0.6) | 55.3 (0.2) | 52.8 (0.4) |