Table 2 Results of the multivariable logistic regression models

Average number of cattle in the area surrounding the holding's location (CATDENSITY (binary) > 2630

2.46

P < 0.001

1.84–3.3

2.62

P < 0.001

1.88–3.64

2.59

P < 0.001

1.92–3.5

Herd size (HERDSIZE) (categorical) < 30

   30–88

3.86

P < 0.001

2.81–3

3.22

P < 0.001

2.23–4.64

3.77

P < 0.001

2.75–5.2

   > 88

10.34

P < 0.001

7.65–11

6.62

P < 0.001

4.55–9.63

9.4

P < 0.001

6.9–12.8

Total farmed area (FARMA) (categorical) < = 40Ha

1.26*

P = 0.001

1.09–1.45

   41–100Ha

1.15

P = 0.183

0.93–1.43

   > 100Ha

1.31

P = 0.007

1.07–1.6

Within or at less than 5 Km to an Area of Outstanding Natural Beauty (5KMAONB) (binary) Yes

0.69

P = 0.023

0.5–0.95

0.63

P = 0.01

0.44–0.7

0.7

P-0.027

0.5–0.96

Total rainfall in 2003 (TOTRAIN)

0.77

P < 0.001

0.68–0.88

0.77

P < 0.001

0.67–0.87

0.76

0.67–0.87

Annual average surface temperature in 2003 (AVETEMP) (categorical) < 9°C

0.81*

P = 0.003

0.7–0.93

   > = 9–11°C

0.88

P = 0.299

0.77–1.11

0.8

P = 0.043

0.64–0.99

   > = 11°C

0.72

P = 0.044

0.53–0.99

0.68

P = 0.007

0.51–0.9

Registered movements on/off in CTS during 2004 (OPENCLOSED) (binary) Yes

6.08

P < 0.001

2.98–12.4

2.18

P = 0.095

0.87–5.44

6.2

P < 0.001

3–12.74