Table 7.
Animal type and gender associated with joint infections
| Variable | Coefficient | Odds ratio | 95% CI | P-value |
|---|---|---|---|---|
| Intercept | −6.70 | <0.0001 | ||
| Animal type | ||||
| Yearling | Referent | |||
| Winter-calves | −0.212 | 0.808 | 0.611–1.06 | 0.136 |
| Fall-calves | 1.29 | 3.64 | 3.12–4.24 | <0.0001 |
| Gender | ||||
| Heifer | Referent | |||
| Steer | −0.374 | 0.687 | 0.545–0.867 | 0.002 |
| Animal type * heifer | ||||
| Yearling * heifer | Referent | |||
| Winter * heifer | 0.863 | 2.37 | 1.60–3.50 | <0.0001 |
| Fall * heifer | 0.251 | 1.28 | 1.00–1.64 | 0.046 |
| Animal type * steer | ||||
| Yearling * steer | Referent | |||
| Winter * steer | 0.650 | 1.91 | 1.45–2.52 | <0.0001 |
| Fall * steer | 1.54 | 4.68 | 3.80–5.75 | <0.0001 |
| Random effect | Estimate | SEM | 95% CI | |
| Feedlot | 1.69 | 0.540 | 0.906–3.16 |