Table 3 Univariate analysis for brucellosis at the herd level
Factors | Infected herds | Healthy herds | Prevalence (%) | Prevalence ratio | p-value |
|---|---|---|---|---|---|
Urbanicity | |||||
Urban | 4 | 50 | 7.4 | x2 = 0.59* | 0.743 |
Peri-urban | 2 | 47 | 4.1 | df = 2 | |
Rural | 5 | 69 | 6.8 | ||
Free-grazing | |||||
Free-grazing | 7 | 26 | 21.1 | 6.15 | <0.001 |
Restricted | 4 | 140 | 2.8 | ||
Breed | |||||
Improved | 4 | 57 | 6.6 | x2 = 0.47* | 0.790 |
Cross | 3 | 61 | 4.7 | df = 2 | |
Indigenous | 4 | 48 | 7.7 | ||
Insemination | |||||
Bull | 8 | 121 | 6.2 | 0.90 | 1 |
AI | 3 | 45 | 6.3 | ||
Vaccination | |||||
Vaccinated | 2 | 7 | 22.2 | 3.76 | 0.10 |
Not vaccinated | 9 | 159 | 5.4 | ||
Abortion | |||||
Aborted | 4 | 21 | 16.0 | 3.06 | 0.052 |
Not aborted | 7 | 145 | 4.6 | ||
Bought-in cattle | |||||
Yes | 7 | 119 | 5.6 | 0.61 | 0.716 |
No | 3 | 40 | 7.0 | ||
Persistent fever | |||||
Exist | 1 | 16 | 5.9 | 0.86 | 1 |
Not exist | 10 | 150 | 6.3 |