Table 2.
Continuous Swine Exposures by Rural Urban Continuum Code.
| RUCC category | n | Density (swine/km2)
|
Large farms (n)
|
||
|---|---|---|---|---|---|
| Mean (Std Dev) | Range | Mean (Std Dev) | Range | ||
| 1, Metropolitan urbanized | 188,116 | 5.76 (17.29) | 0–247.26 | 0.12 (0.58) | 0–9 |
| 2, Nonmetropolitan urbanized | 12,688 | 32.48 (26.96) | 0–163.78 | 1.68 (1.70) | 0–8 |
| 3, Less urbanized | 13,575 | 33.13 (27.50) | 0–326.46 | 1.62 (1.78) | 0–11 |
| 4, Thinly populated | 839 | 21.77 (20.11) | 0–95.78 | 0.57 (0.73) | 0–2.6 |
RUCC, Rural Urban Continuum Code; Std Dev, standard deviation.