Table 3.
Results for variables that individually replaced the breed type variable in the final multivariable logistic regression model (with age and bodyweight relative to breed/sex mean) to evaluate risk factors associated with heat related illness in dogs under primary veterinary care in the VetCompass Programme in the UK during 2016.
| Variable | Odds ratio | 95% CI | P-value |
| Skull shape | <0.001 | ||
| Mesocephalic | Base | ||
| Dolichocephalic | 1.08 | 0.74–1.58 | 0.698 |
| Brachycephalic-cross | 0.22 | 0.03–1.56 | 0.129 |
| Brachycephalic | 2.10 | 1.68–2.64 | <0.001 |
| Unrecorded | 0.73 | 0.53–0.99 | 0.039 |
| Purebred | <0.001 | ||
| Crossbred | Base | ||
| Designer Cross | 0.72 | 0.36–1.41 | 0.337 |
| Purebred | 1.86 | 1.39–2.49 | <0.001 |
| Unrecorded | 2.41 | 0.57–10.16 | 0.233 |
| Bodyweight (kg) | <0.001 | ||
| <10 | Base | ||
| 10-<20 | 1.82 | 1.31–2.53 | <0.001 |
| 20-<30 | 2.13 | 1.51–3.02 | <0.001 |
| 30-<40 | 1.74 | 1.14–2.65 | 0.010 |
| 40-<50 | 1.76 | 0.91–3.40 | 0.093 |
| ≥50 | 3.42 | 1.54–7.57 | 0.002 |
| Unrecorded | 0.65 | 0.16–2.70 | 0.553 |