Table 4.
Herd level factors associated with ear necrosis in the final multivariable logistic regression model based on observational data (P < 0.05)
| Variable | OR | OR (95% CI) | P-valuea |
|---|---|---|---|
| Presence of ear biting | 22.34 | 1.09–459.49 | 0.04 |
| High humidity level (versus low) | 52.63 | 2.81–1000 | 0.01 |
| Number of observations: 24 | |||
| AUCb: 0.90 | |||
| AICc: 22.61 BICd: 26.14 |
OR — odds ratio.
a
Wald test was used to determine statistical differences.
b
AUC — area under the ROC (receiver operating characteristic) curve.
c
AIC — Akaike’s Information Criteria.
d
BIC — Bayesian Information Criteria.
Pearson X2 goodness-of-fit test, P < 0.001.