Table 1.
Summary of selected county-level variables in the contiguous United States.
| No. | Mean | SD | Median | Min | Max | Pearson correlation coefficient with % adult obesity | |
|---|---|---|---|---|---|---|---|
| Environmental | |||||||
| Altitude (m)—weighted | 3,106 | 414.3 | 487.4 | 263.1 | −9.5 | 3471.4 | −0.333 |
| Altitude < 500 meters | 2,412 | 208.2 | 129.2 | 212.3 | −9.5 | 500.0 | |
| Altitude 500−999 meters | 367 | 699.7 | 140.8 | 676.3 | 500.6 | 997.0 | |
| Altitude 1,000−1,499 meters | 169 | 1,226.4 | 150.2 | 1,207.0 | 1,002.6 | 1,498.1 | |
| Altitude 1,500−1,999 meters | 88 | 1,721.5 | 150.6 | 1,699.6 | 1,500.5 | 1,993.7 | |
| Altitude 2,000−2,499 meters | 47 | 2,185.2 | 134.4 | 2,162.0 | 2,007.4 | 2,475.5 | |
| Altitude 2,500 meters | 23 | 2,885.1 | 257.9 | 2,804.8 | 2,524.6 | 3,471.4 | |
| Avg daily sunlight (kJ/m2) | 3,106 | 16,398.3 | 1,605.0 | 16,102.9 | 12,689.0 | 21,191.1 | −0.024 |
| Avg daily maximum air temperature (F) | 3,106 | 65.4 | 9.3 | 64.8 | 38.4 | 87.5 | 0.227 |
| Avg PM2.5 (μg/m3) | 3,108 | 9.0 | 2.0 | 9.4 | 3.0 | 19.7 | 0.260 |
| Avg daily precipitation (mm) | 3,106 | 2.7 | 0.9 | 3.0 | 0.2 | 7.1 | 0.236 |
|
| |||||||
| Demographic and lifestyle | |||||||
| % female | 3,108 | 49.9 | 2.2 | 50.3 | 26.8 | 56.9 | 0.058 |
| % non-Hispanic white | 3,108 | 76.3 | 19.9 | 83.6 | 2.7 | 97.9 | −0.089 |
| % black | 3,108 | 9.1 | 14.4 | 2.3 | 0.0 | 85.4 | 0.314 |
| % Hispanic | 3,108 | 9.7 | 13.9 | 4.4 | 0.6 | 96.4 | −0.193 |
| % rural | 3,107 | 58.5 | 31.4 | 59.4 | 0.0 | 100.0 | 0.174 |
| % some college | 3,108 | 57.9 | 11.8 | 58.0 | 15.0 | 100.0 | −0.372 |
| Median household income | 3,108 | 52,659.6 | 13,822.1 | 50,514.5 | 25,385.0 | 1,40,382.0 | −0.427 |
| % food insecure | 3,108 | 13.28 | 3.97 | 13.00 | 3.00 | 36.00 | 0.367 |
| % limited access to healthy foods | 3,089 | 8.55 | 8.23 | 6.00 | 0.00 | 72.00 | −0.001 |
| Food Environment Index | 3,089 | 7.5 | 1.1 | 7.7 | 0.0 | 10.0 | −0.241 |
| % adult smokers | 3,108 | 17.4 | 3.6 | 17.0 | 6.0 | 41.0 | 0.501 |
| % adult physical inactive | 3,108 | 27.5 | 5.7 | 27.0 | 10.0 | 50.0 | 0.561 |