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Table 1 Bivariate analysis of risk factors for human brucellosis

From: Risk factors for human brucellosis among a pastoralist community in South-West Kenya, 2015

Variable Controls (n = 86) Cases (n = 43) Crude OR (95% CI) p-value
Yes Yes
Consume fresh goat milk
 More than 3 times a week 14 14 2.4 (1.0–6.0) 0.114
 Less than 3 times a week 21 8 0.9 (0.4–2.4)
 No 51 21 1.0
Consume cow milk
 Boiled 82 32 7.7 (1.5–40.1) 0.016
 Unboiled 2 6  
Consume fresh sheep milk
 More than 3 times a week 1 1 2.1 (0.1–34.1) 0.756
 Less than 3 times a week 4 3 1.6 (0.3–7.3)
 No 81 39 1.0
Drink fresh blood
 Yes 6 7 2.6 (0.8–8.3) 0.098
 No 80 36  
Had cattle in the household
 Yes 55 26 0.1 (0.0–0.9) 0.035
 No 31 17  
Slaughter cattle at home
 Occasionally 54 32 2.3 (0.8–6.2) 0.102
 Never 23 6  
Herding sheep
 Several times a week 16 14 2.0 (0.5–7.8) 0.196
 Occasionally 49 19 0.9 (0.2–3.2)
 Never 9 4 1.0
Assisting sheep in delivery
 Several times a week 1 1 4.0 (0.2–72.2) 0.116
 Occasionally 45 30 2.7 (1.0–6.9)
 Never 28 7 1.0
Slaughtering goats at home
 Several times a week 1 1 4.8 (0.3–90.3) 0.115
 Occasionally 53 33 3.0 (1.0–8.6)
 Never 24 5 1.0
Assisting goats in delivery
 Occasionally 48 31 3.7 (1.3–10.7) 0.043
 Never 29 5 1.0
Slaughtering wild animals
 Yes 1 3   0.073
 No 82 40 6.4 (0.6–63.2)
Cleaning animal barns
 Several times a week 57 5 0.4 (0.1–1.3) 0.132
 Occasionally 19 14  
Handle animal hides
 Yes 30 23 2.1 (1.2–4.5) 0.043
 No 56 20