Table 5 Final multivariable logistic regression model with brachycephalic status as the factor of primary interest for association with diagnosis with at least one upper respiratory tract disorder in dogs attending primary-care veterinary practices in England
Variable | Category | Odds ratio | 95 % CI | P-valuea |
|---|---|---|---|---|
Brachycephalic status | Moderate and non-brachycephalic | Base | ||
Extreme brachycephalic | 3.5 | 2.4–5.0 | < 0.001 | |
Bodyweight tertiles within groups | High | Base | (< 0.001) | |
Mid | 1.1 | 0.7–1.9 | 0.612 | |
Low | 1.8 | 1.1–2.9 | 0.016 | |
No recorded bodyweight | 0.6 | 0.4–1.0 | 0.057 | |
Insurance | Non-insured | Base | ||
Insured | 1.8 | 1.2–2.7 | 0.003 |