Table 2.
Coefficients of the final multivariate logistic regression model with number of positive cases in a holding as outcome with P values and 95% confidence intervals
| Variable (baseline) | Coefficients | P value | 95% CI | Odds Ratios |
| Country (England) | ||||
| Wales | -0.12 | 0.511 | -0.5, 0.24 | 0.88 |
| Scotland | -0.44 | 0.124 | -1, 0.12 | 0.64 |
| Number of CSFS flocks within holding | 0.04 | 0.458 | -0.07, 0.15 | 1.04 |
| Route (WFC*) | ||||
| Genotype & cull or mixed | 0.39 | 0.059 | 0.01, 0.8 | 1.47 |
| CSFS index case (clinical suspect) | ||||
| Abattoir survey | 0.48 | 0.133 | -0.14, 1.12 | 1.61 |
| Fallen Stock/DIT** | -0.27 | 0.236 | -0.73, 0.18 | 0.76 |
| Constant | -5.25 | < 0.001 | -5.7, -4.8 |
*WFC: Whole flock cull
**DIT: Dead in transit