Table 4.
Association of the seroprevalence of bovine brucellosis across host-related risk factors.
| Risk factors | Category | N (+ve) | Prevalence (%) | Univariable analysis | Multivariable analysis | ||
|---|---|---|---|---|---|---|---|
| χ 2 | p value | AOR (95% CI) | p value | ||||
| Age | Young | 106 (0) | 0 | 4.826 | 0.028 | ||
| Adult | 318 (14) | 4.4 | |||||
| Sex | Male | 121(3) | 2.5 | 0.359 | 0.549 | ||
| Female | 303 (11) | 3.6 | |||||
| Breed | Local | 349 (14) | 4.0 | 3.111 | 0.078 | ||
| Cross | 75 (0) | 0 | |||||
| Body condition | Poor | 137 (10) | 7.3 | 10.272 | 0.006 | 4.8 (2.00-22.74) | 0.005 |
| Medium | 186 (3) | 1.6 | 2.7 (1.10-5.26) | 0.016 | |||
| Good (ref) | 106 (1) | 0.9 | |||||
| Parity | Monoparous | 55 (2) | 3.6 | 6.198 | 0.05 | ||
| Multiparous | 185 (9) | 4.9 | |||||
| Status of pregnancy | Yes | 85 (7) | 8.2 | 8.104 | 0.004 | 4.3 (1.43-13.04) | 0.009 |
| Not (ref) | 155 (4) | 2.6 | |||||
| Reproductive category | Bull | 121 (3) | 2.5 | 3.642 | 0.162 | ||
| Heifers | 63 (0) | 0 | |||||
| Cows | 240 (11) | 4.6 | |||||
| History of abortion | Yes | 64 (5) | 7.8 | 4.803 | 0.028 | 3.3 (1.07-10.21 | 0.038 |
| No (ref) | 176 (6) | 3.4 | |||||
| History of RFP | Yes | 84 (6) | 7.1 | 0.024 | 0.877 | ||
| No (ref) | 156 (5) | 3.2 | |||||
| History of repeat breeding | Yes | 76 (5) | 6.6 | 3.115 | 0.078 | 2.7 (1.86-8.15) | <0.001 |
| No (ref) | 164 (6) | 3.7 | |||||
AOR: adjusted odds ratio; χ2: chi square; CI: confidence interval; N: number of observation; RFP: retained fetal placenta.