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Table 6 Univariate and multivariate analyses of the herd-level risk of having a non-negative RHT associated with cattle movements

From: Risk factors for bovine tuberculosis in low incidence regions related to the movements of cattle

 

    Confirmed positive RHT

    Unconfirmed positive RHT

    Unconfirmed inconclusive RHT

Purchased cattle from:

OR

95% CI  

p-value

OR

95% CI  

p-value

OR

95% CI  

p-value

Univariate analysis

         

   Overseas herd

4.32

1.54 – 12.2

0.005

1.01

0.47 – 2.12

0.989

1.23

0.92 – 1.64

0.167

   High incidence parish of England and Wales

1.69

0.57 – 5.03

0.343

1.39

0.71 – 2.71

0.340

1.11

0.84 – 1.46

0.438

   Low incidence parish of England and Wales

1.38

0.35 – 5.45

0.643

0.21

0.03 – 1.57

0.129

0.62

0.37 – 1.06

0.082

   Scottish herd classified as:

         

     confirmed positive RHT with high risk imports

0.54

0.11 – 2.74

0.460

0.99

0.36 – 2.71

0.983

0.72

0.45 – 1.12

0.147

     confirmed positive RHT with no high risk imports

1.15

0.13 – 9.85

0.901

0.78

0.10 – 6.00

0.814

0.50

0.18 – 1.38

0.180

     unconfirmed positive RHT with high risk imports

0.78

0.22 – 2.76

0.700

1.28

0.59 – 2.80

0.531

1.17

0.85 – 1.62

0.331

     unconfirmed positive RHT with no high risk imports

0.85

0.21 – 3.45

0.820

0.29

0.66 – 1.24

0.094

0.92

0.62 – 1.37

0.683

     unconfirmed inconclusive RHT with high risk imports

1.92

0.53 – 6.95

0.323

1.79

0.89 – 3.62

0.103

1.39

1.03 – 1.80

0.028

     unconfirmed inconclusive RHT with no high risk imports

0.86

0.29 – 2.56

0.792

0.90

0.46 – 1.74

0.745

1.21

0.93 – 1.57

0.158

     negative RHT and with high risk imports

1.70

0.42 – 6.78

0.456

1.61

0.60 – 4.38

0.347

0.83

0.50 – 1.38

0.482

     negative RHT with no high risk imports

-

-

-

0.88

0.40 – 1.93

0.751

0.85

0.62 – 1.16

0.323

     no VETNET database entries

-

-

-

-

-

-

1.12

0.64 – 1.98

0.702

Multivariate analysis

         

   Overseas herd

4.13

1.47 – 11.6

0.002

      

   Scottish herd classified as:

         

     unconfirmed inconclusive RHT with high risk imports

      

1.35

1.03 – 1.78

0.037

  1. The sample was restricted to data from 2006 to 2009. Both the univariate and multivariate analyses were performed using multinomial logistic regression models with the total number of cattle movements included as a confounding variable.
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BMC Veterinary Research

ISSN: 1746-6148

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