Table 1.
Univariate analysis of animal demographics and overall seroprevalence
| Variable | n | % |
|---|---|---|
| Species | ||
| Cattle | 1,732 | 54.5 |
| Goats | 1,091 | 34.3 |
| Sheep | 358 | 11.3 |
| Age* | ||
| Nurslings | 376 | 11.8 |
| Juvenile | 556 | 17.5 |
| Adult | 2,247 | 70.6 |
| Unknown | 2 | 0.1 |
| Sex | ||
| Female | 2,482 | 78.0 |
| Male | 688 | 21.6 |
| Unknown | 11 | 0.4 |
| Breed | ||
| Cross | 836 | 26.3 |
| Exotic | 71 | 2.2 |
| Local | 2,274 | 71.5 |
| RVF IgG result | ||
| Negative | 2,960 | 93.1 |
| Positive | 221 | 6.9 |
| Current health status | ||
| Healthy | 2,685 | 84.4 |
| Unhealthy | 257 | 8.1 |
| Unknown | 239 | 7.5 |
| Past health status | ||
| Healthy | 2,522 | 79.3 |
| Unhealthy | 109 | 3.4 |
| Unknown | 550 | 17.3 |
| Grazing pattern | ||
| Paddocking | 842 | 26.5 |
| Communal | 1,430 | 45.0 |
| Tethering | 170 | 5.3 |
| Zero grazing | 113 | 3.6 |
| Missing | 626 | 19.7 |
| Abortion | ||
| No | 683 | 21.5 |
| Yes | 696 | 21.9 |
| Missing | 1,802 | 56.7 |
| Stillbirth | ||
| No | 985 | 31.0 |
| Yes | 341 | 10.7 |
| Missing | 1,855 | 58.3 |
| Elevation | ||
| High | 1,403 | 44.1 |
| Low | 1,778 | 55.9 |
| Region | ||
| Eastern | 526 | 16.5 |
| Northern | 923 | 29.0 |
| Central | 662 | 20.8 |
| Western | 1,070 | 33.6 |
RVF = Rift Valley fever.
*
The age category was estimated qualitatively by looking at the physical attributes of sampled animals because rural farmers do not have records.