Table 5. Logistic mixed model of the association between seropositivity with individual-level and group-level covariates in small ruminants from resident and nomadic herds of Younoufere area, Ferlo, Senegal, August 2015-May 2016.
| Variable | Value | p-value | Odds-ratio |
|---|---|---|---|
| Age | Quantitative (years) | <0.0001 | 1.3a [1.1–1.5] |
| Sex | Female | Reference | |
| Male | 0.14 | NS | |
| Species | Sheep | Reference | |
| Goat | 0.25 | NS | |
| Type of herd– | Long-range nom.b – 1st half of rainy seasonc | Reference | |
| sampling date | Short-range nom.– 1st half of rainy seasonc | 0.09 | NS |
| Long-range nom.– 2nd half of rainy seasonc | 0.0005 | 7.9 [2.3–28.3] | |
| Short-range nom.– 2nd half of rainy seasonc | 0.009 | 4.5 [1.4–16.2] | |
| Resident–Dry seasond | 0.02 | 3.9 [1.2–14.7] |
a computed for an increase of 1 year of age
b Nomads
c 2015
d 2016