Table 5.
Multivariable logistic regression analysis of factors associated with Brucella seropositivity in study areas.
| Variable | Category | Total animals examined | Total animals positive (%) | Adjusted OR (95% CI) | P-value |
|---|---|---|---|---|---|
| Age | 0.015 | ||||
| <3 years | 29 | 4 (13.4) | – | – | |
| 3–6 years | 204 | 8 (3.9) | 4.3 (1.04–17.97) | 0.045 | |
| >6 years | 190 | 5 (2.6) | 9.6 (2.08–44.07) | 0.004 | |
| Breed | Cross | 116 | 10 (8.6) | – | – |
| Local | 307 | 7 (2.3) | 4.5 (1.54–12.99) | 0.006 | |
| Herd size | 0.037 | ||||
| Small | 180 | 12(6.7) | – | – | |
| Medium | 126 | 4(3.2) | 3.0 (0.87–10.22) | 0.083 | |
| Large | 117 | 1(0.9) | 10.4 (1.27- 85.04) | 0.029 | |
| Species composition | Only cattle | 40 | 5(12.5) | – | – |
| Mixed with sheep and/ goat | 383 | 12(3.1) | 4.4 (1.31–14.89) | 0.017 |
OR: Odds Ratio; CI: Confidence Interval.