Risk factors

Variable

Number

Positive cases

Prevalence (%)

p-value

Sex

Male

1714

33

1.93

0.0006

Female

648

30

4.63

Breed

Duroc

83

0

0.00

<0.0001

Large White

2156

48

2.23

Landrace

156

12

7.69

Piétrain

30

3

10.00

Husbandry system

Intensive

1762

39

2.21

0.003

Semi-intensive

526

15

2.85

Traditional

137

9

6.57

Locality

Petit-Akoupe

283

6

2.12

0.86

Adzope

109

5

4.59

Bingerville

1164

29

2.49

Bouafle

139

5

3.6

Taabo

191

5

2.62