Table 1.
Univariable logistic regression analysis of potential risk factors associated with the seropositivity of bovine FMD in West Shewa Zone.
| Risk factors | Categories | No. of cattle sampled | No. of seropositive | Seroprevalence (%) | Odds ratio | 95% CI | p value |
|---|---|---|---|---|---|---|---|
| Districts | Ambo | 66 | 19 | 28.8 | 1 | — | |
| Bako Tibe | 78 | 30 | 38.5 | 1.5 | 0.8–3.2 | 0.223 | |
| Cheliya | 50 | 28 | 56.0 | 3.2 | 1.5–6.8 | 0.004 | |
| Abuna Ginde Beret | 51 | 24 | 47.1 | 2.2 | 1.0–4.7 | 0.044 | |
| Jeldu | 43 | 13 | 30.2 | 1.1 | 0−2.5 | 0.871 | |
| Tokekutaye | 96 | 41 | 42.7 | 1.3 | 0.8–3.7 | 0.073 | |
| Sex | Male | 175 | 64 | 36.6 | 1 | — | |
| Female | 209 | 91 | 43.5 | 1.3 | 0.9–2.1 | 0.166 | |
| Breed | Local | 248 | 89 | 35.9 | 1 | - | |
| Cross | 136 | 66 | 48.5 | 1.7 | 1.1–2.6 | 0.016 | |
| Management | Extensive | 316 | 117 | 37.0 | 1 | — | |
| Semi-intensive and intensive | 68 | 38 | 55.9 | 2.2 | 1.3–3.7 | 0.005 | |
| Sheep and goats in cattle herd | No | 152 | 42 | 27.6 | 1 | — | |
| Yes | 232 | 113 | 48.7 | 2.4 | 1.6–3.9 | ≤0.001 | |
| Age in years | 2–4 | 185 | 72 | 38.9 | 1 | — | |
| >4 | 199 | 83 | 41.7 | 1.1 | 0.8–1.7 | 0.578 | |
| Common grazing | No | 159 | 59 | 37.1 | 1 | — | |
| Yes | 225 | 96 | 42.7 | 1.3 | 0.8–1.9 | 0.274 |
The multivariable logistic regression model of risk factors analysis indicated that districts, breed, and animal composition in herds had a significant association with seroprevalence of FMD and hence are independent predictors (p < 0.05). Abuna Ginde Beret and Cheliya districts have a chance of 9 times more likely to have FMD seropositive when compared to the Ambo district. The prevalence of FMD was higher when cattle keeping with small ruminants, and the data had a statistically significant difference (OR: 2.1) (Table 2).