Table 2 Multivariate model using logistic regression analysis for the association between the potential risk factors and BTV seropositive cattle in North Kordufan State, Sudan

Age

Ref

Young

4.30

1.94-9.57

0.01^*

Old

Vector control

Ref

Yes

7.41

3.11-17.64

0.01^*

No

Body condition

Ref

 Emaciated

2.95

1.15-7.60

0.03^*

 Fat

Localities

Ref

 Abuzabad

0.06

0.06-1.28

0.74

 Umrawaba

2.09

0.29-40.64

0.46

 Bara

0.08

0.01-2.47

0.15

 Sheikan

0.24

0.01-4.44

0.33

 Ennuhud

0.77

0.08-7.45

0.82

 Elkhuwaye

Sex

Ref

 Female

0.38

0.11-1.24

0.11

 Male

Breed

Ref

 Indigenous

0.96

0.06-50.95

0.98

 Cross

Animal source

Ref

 Purchase from local market

1.37

0.44-4.23

0.59

 Raised on farm

0.86

0.08-9.27

0.90

 Purchase from other farm

Grazing system

Ref

 Stationary

1.91

0.20-17.83

0.57

 Nomadic

0.69

0.07-6.78

0.75

 Semi nomadic

Herd size

Ref

 Small

2.79

0.61-12.86

0.19

 Large

Farm yard

Ref

 Indoor

2.79

0.62-14.28

0.17

 Outdoor

Milk production

Ref

 No

0.63

0.32-1.24

0.18

 Low

0.15

0.01-1.89

0.14

 High

Other animals

Ref

 No

1.20

0.45-3.20

0.73

 Yes