Table 1.
Univariate analysis of farm-level variables for presence of Babesia sp. in 95 animals with farm holding number as a cluster variable.
| Variable | Total Animals | Babesia-Positive (%) | Estimate | Standard Error | p Value | Odds Ratio (OR) | 95% Confidence Interval (CI) |
|---|---|---|---|---|---|---|---|
| Region (n = 95) | |||||||
| South West England | 76 | 34 (44.7) | - | - | - | - | - |
| Rest of England and Wales | 19 | 11 (57.9) | 0.54 | 0.556 | 0.33 | 1.71 | 0.58–5.09 |
| Farm type (n = 94) | |||||||
| Dairy | 37 | 13 (35.1) | - | - | - | - | - |
| Beef | 57 | 32 (56.1) | 1.07 | 0.576 | 0.06 | 2.91 | 0.94–8.99 |
| Number on holding (n = 95) | |||||||
| 0–99 | 23 | 13 (56.5) | - | - | - | - | - |
| 100–199 | 24 | 14 (58.3) | 0.06 | 0.625 | 0.92 | 1.06 | 0.31–3.61 |
| 200–299 | 17 | 8 (47.1) | −0.42 | 0.691 | 0.54 | 0.66 | 0.17–2.54 |
| 300–399 | 15 | 4 (26.7) | −1.35 | 0.794 | 0.09 | 0.26 | 0.05–1.23 |
| >400 | 16 | 6 (37.5) | −0.83 | 0.723 | 0.25 | 0.44 | 0.11–1.81 |