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Table 1 Risk factors associated with the seroprevalance of Brucella spp. based on the univariable mixed-effects logistic regression analyses using aggregated data from all animals

From: Incidence of Brucella infection in various livestock species raised under the pastoral production system in Isiolo County, Kenya

Variable Category No. tested (n) % Seroprevalence (95% CI) Odds ratio (95% CI) P - value
Sex
  Female 444 12.6 (9.7–16.1) 1 (Ref.)  
  Male 88 4.5 (1.3–11.2) 0.3 (0.1–0.8) 0.020
Species
  Cattle 298 13.8 (10.1–18.2) 1 (Ref.)  
  Sheep 118 2.5 (0.5–7.2) 0.1 (0.0–0.5) 0.002
  Goats 106 13.2 (7.4–21.2) 0.7 (0.3–1.7) 0.443
  Camel 10 20.0 (2.5–55.6) 1.3 (0.2–9.6). 0.805
Age
  Adult 419 13.4 (10.3–17.0) 1 (Ref.)  
  Weaner 60 6.7 (1.8–16.2) 0.6 (0.2–1.7) 0.152
  Young 53 0.0 (0.0–6.7) 0.0 0.974
Pregnancy status
  No 372 9.7 (6.9–13.1) 1 (Ref.)  
  Yes 160 15.0 (9.9–21.5) 1.8 (1.0–3.3) 0.043
  1. Ref reference category; CI lower and upper limits for 95% confidence interval