From: Risk factors for bovine Tuberculosis at the national level in Great Britain
Testing interval | |||||||||
---|---|---|---|---|---|---|---|---|---|
Unit | All herds | 1 year | 2,3 year | 4 year | |||||
OR | p | OR | p | OR | P | OR | p | ||
Country | England | 1 | REF | 1 | REF | - | - | 1 | REF |
Wales | 0.919 (0.86, 0.98) | 0.008 | 0.889 (0.74, 0.89) | <0.001 | - | - | 1.352 (0.99, 1.84) | 0.055 | |
Scotland | 0.822 (0.64, 1.05) | 0.119 | - | - | - | - | 3.709 (2.59, 5.31) | <0.001 | |
X coord | x10-5 | 1.279 (1.22, 1.34) | <0.001 | 1.377 (1.28, 1.49) | <0.001 | - | - | - | - |
Y coord | y10-5 | 1.123 (1.05, 1.21) | <0.001 | 1.179 (1.03, 1.35) | 0.016 | 0.856 (0.83, 0.90) | <0.001 | 1.125 (0.92, 1.37) | 0.241 |
Testing interval | 1 | 1 | REF | - | - | - | - | - | - |
2 | 0.445 (0.42, 0.47) | <0.001 | - | - | 1 | REF | - | - | |
3 | 0.212 (0.16, 0.27) | <0.001 | - | - | 0.455 (0.35, 0.59) | <0.001 | - | - | |
4 | 0.181 (0.17, 0.19) | <0.001 | - | - | - | - | - | - | |
Herd type | Beef | 1 | REF | 1 | REF | 1 | REF | 1 | REF |
Fatt’ | 1.221 (1.14, 1.31) | <0.001 | 1.254 (1.15, 1.37) | <0.001 | 1.214 (1.03, 1.43) | 0.023 | 1.942 (1.54, 2.45) | <0.001 | |
Suckler | 1 | REF | 1 | REF | 1 | REF | 1 | REF | |
Dairy | 1 | REF | 1 | REF | 1 | REF | 1 | REF | |
Store | 1 | REF | 1 | REF | 1 | REF | 1 | REF | |
Herd size | 0 – 10 | 1 | REF | 1 | REF | 1 | REF | 1 | REF |
11 – 100 | 2.059 (1.84, 2.31) | <0.001 | 2.976 (2.56, 3.46) | <0.001 | 3.366 (2.43, 4.66) | <0.001 | 2.306 (1.35, 3.95) | 0.002 | |
>100 | 4.026 (3.59, 4.52) | <0.001 | 5.712 (4.87, 6.71) | <0.001 | 7.616 (5.44, 10.6) | <0.001 | 7.654 (4.57, 12.8) | <0.001 | |
Irish imports | 0 | 1 | REF | - | - | - | - | 1 | REF |
>0 | 1.760 (1.41, 2.19) | <0.001 | - | - | - | - | 4.005 (2.85, 5.63) | <0.001 | |
Badgers | Count/10 | 1.060 (1.04, 1.09) | <0.001 | 1.070 (1.03, 1.11) | <0.001 | - | - | - | - |
History | No | 1 | REF | 1 | REF | 1 | REF | - | - |
Yes | 1.379 (1.30, 1.46) | <0.001 | 1.369 (1.28, 1.46) | <0.001 | 1.750 (1.41, 2.17) | <0.001 | - | - | |
High risk moves | 0 | 1 | REF | 1 | REF | 1 | REF | 1 | REF |
1-10 | 3.342 (2.95, 3.79) | <0.001 | 1.410 (1.16, 1.71) | <0.001 | 1.230 (0.83, 1.83) | 0.306 | 1.678 (1.24, 2.27) | <0.001 | |
>10 | 7.463 (6.61, 8.43) | <0.001 | 2.020 (1.66, 2.47) | <0.001 | 2.261 (1.52, 3.36) | <0.001 | 8.726 (6.85, 11.1) | <0.001 | |
FMD | No | 1 | REF | - | - | 1 | REF | - | - |
Yes | 1.217 (1.07, 1.38) | 0.002 | - | - | 1.469 (1.11, 1.94) | 0.007 | - | - | |
x*y | 0.917 (0.90, 0.94) | <0.001 | 0.903 (0.87, 0.94) | <0.001 | - | - | - | - | |
Area under the ROC | 0.896 | 0.767 | 0.792 | 0.912 |