Table 7.
Final multivariable model for risk factors associated with recovery of multiply‐resistant M. haemolytica in second sample (multiply‐resistant versus singly‐resistant or susceptible)
| Predictor | Level | Odds Ratio | 95% CI | P Value |
|---|---|---|---|---|
| Parenteral drugs given to penmates of sampled individual at any time before sample collection | Any exposure | 23.9 | 8.4–68.3 | <.0001 |
| No exposure | Reference | Reference | ||
| Arrival season | Fall (Oct–Dec) | 1.2 | 0.5–3.1 | .07 |
| Summer (Jul–Sept) | 0.6 | 0.2–1.9 | ||
| Spring (Apr–Jun) | 0.2 | 0.1–1.0 | ||
| Winter | Reference | Reference |