Table 1. Multivariate analysis of risk factors for RVF virus seropositivity in animals.
| No. | Positive IgM | Positive IgG | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| No. | % | P | Multivariate analysis | No. | % | P | Multivariate analysis | ||||
| OR | 95% CI | OR | 95% CI | ||||||||
| Species | |||||||||||
| Cattle | 727 | 8 | 1.1 | 0.002 | Reference | 57 | 7.8 | 0.003 | Reference | ||
| Goat | 219 | 3 | 1.4 | 0.3 | 0.0–2.2 | 11 | 5.0 | 0.8 | 0.4–1.7 | ||
| Sheep | 325 | 14 | 4.3 | 0.9 | 0.2–4.7 | 42 | 12.9 | 1.8 | 1.1–3.0 | ||
| Sex | |||||||||||
| Male | 551 | 6 | 1.1 | 0.07 | - | 39 | 7.1 | 0.204 | - | ||
| Female | 719 | 19 | 2.6 | - | 71 | 10.0 | - | ||||
| Age | |||||||||||
| Juvenile | 273 | 3 | 1.1 | 0.36 | - | 14 | 5.1 | 0.019 | - | ||
| Adult | 998 | 22 | 2.2 | - | 96 | 9.6 | - | ||||
| Origin | |||||||||||
| Ndangala | 69 | 6 | 8.7 | < 0.0001 | Reference | 0 | 0.0 | < 0.0001 | Reference | ||
| Ngawi | 119 | 9 | 7.6 | 0.7 | 0.2–2.4 | 22 | 18.5 | 0.5 | 0.8–2.8 | ||
| Cattle market | 1083 | 10 | 2.0 | 0.1 | 0.0–0.5 | 88 | 8.1 | N/A | |||
| Season | |||||||||||
| Rainy | 732 | 25 | 3.4 | NA | 88 | 12.0 | < 0.001 | Reference | |||
| Dry | 539 | 0 | 0.0 | < 0.001 | NA | 22 | 2.1 | 0.3 | 0.1–0.5 | ||
NA, not applicable; OR, odd ratio; CI, confidence interval; IgM, Immunoglobulin M; IgG, Immunoglobulin