Table 1 Descriptive statistics for King County, Washington State, USA
| Â | Countywide a | All tracts b (n = 373) | Tracts with fast food restaurants b (n = 198) | Tracts without fast food restaurants b (n = 175) |
|---|---|---|---|---|
variable | mean (sd) | mean (sd) | mean (sd) | mean (sd) |
Total populationc | 1737034 | 4657 (1518) | 4964 (1595) | 4379 (1391) |
Population density (n/sq km)c | 315 | 2074 (2005) | 2314 (2443) | 1858 (1477) |
Area (km2)c, d | 5519 | 14.8 (95.2) | 13.1 (81.8) | 16.7 (108.5) |
Arterial density (km/km2)d | 0.77 | 3.45 (3.39) | 4.16 (3.98) | 2.62 (2.31) |
% Living below povertyc | 7.62 | 7.7 (6.67) | 9.47 (7.32) | 5.69 (5.16) |
% Nonwhitea | 24.27 | 23.62 (16.18) | 26.50 (16.50) | 20.37 (15.21) |
Median household income (USD)c | 53157 | 57047 (19569) | 50097 (16528) | 64910 (19805) |
Fast food density (n/km2)d | 0.11 | 0.81 (2.14) | 1.53 (2.74) | Â |
Fast food density (n/1000 persons)d | 0.35 | 0.39 (0.82) | 0.75 (1.00) | Â |
Mean network distance from residential dwelling unit to the closest fast food restaurant (km)d | 1.20 (.090) | Â | 1.07 (0.77) | 1.88 (0.85) |