Table 4.
Multivariable logistic regression analysis of risk factors associated with brucellosis seropositivity among small ruminants from Duhok Province (Iraq). CI: confidence interval; OR: odds ratio; S.E: standard error.
| Variables | OR | 95% CI | S.E. | p-Value | |
|---|---|---|---|---|---|
| Age (month) | 1.7 | (1.4, 2.1) | 0.196 | <0.001 | |
| District | Aqarh | 1.0 | - | - | - |
| Amadiya | 0.4 | (0.1, 0.8) | 0.156 | 0.019 | |
| Duhok | 0.3 | (0.1, 0.7) | 0.145 | 0.012 | |
| Simele | 0.8 | (0.4, 1.8) | 0.335 | 0.670 | |
| Shekhan | 0.4 | (0.1, 0.8) | 0.156 | 0.019 | |
| Zakho | 1.4 | (0.6, 3.2) | 0.591 | 0.331 | |
| Number of sheep on the farm | 1.0 | (1.0, 1.1) | 0.003 | 0.030 | |
| Flock grazing—Pattern | Sheep and goats graze separately | 1.0 | - | - | - |
| Sheep and goats graze together | 2.0 | (1.1, 3.9) | 0.684 | 0.028 | |
| Abortion among goats on farm in the preceding 12 months | No | 1.0 | - | - | - |
| Yes | 2.2 | (1.2, 4.3) | 0.742 | 0.012 | |
| Money spent (in 1000 Iraqi Dinars) on control of Brucella in the flock in the preceding 12 months | 0.9 | (0.8, 0.9) | 0.002 | 0.021 | |