Table 3 Unconditional associations between continuous independent variables and infection status of 41 study herds in Ireland during November 2007
Non-infected (n = 1) | Infected (n = 30) | ||||
|---|---|---|---|---|---|
Variable | Median | Range | Median | Range | P-value |
Number of mart-bought animals during 2007 | 0 | 0 - 5 | 2 | 0 - 21 | 0.066 |
Number of contiguous herds | 11 | 3 - 16 | 12 | 3 - 50 | 0.067 |
Percentage male (%) | 25 | 13 - 40 | 23 | 6 - 34 | 0.072 |