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
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 |