Table 3. Breed distribution of dogs with HC compared with dogs in the control group and relative OR.
| Breed | Dogs with HC | Control group | OR (CI) | p-value |
|---|---|---|---|---|
| Crossbred | 33 | 6,709 | 1 | NA |
| Standard Schnauzer | 2 | 7 | 58.1 (11.63–290.10) | <0.0001 |
| Fox Terrier | 2 | 20 | 20.33 (5.57–90.50) | <0.0001 |
| Cavalier King Charles Spaniel | 3 | 76 | 8.03 (2.41–26.73) | <0.0001 |
| Boxer | 4 | 106 | 7.67 (2.67–22.04) | <0.0001 |
| Shih Tzu | 2 | 62 | 6.56 (1.54–27.93) | 0.0033 |
| Bolognese | 4 | 129 | 6.30 (2.20–18.05) | <0.0001 |
| Pitbull | 3 | 102 | 5.98 (1.80–19.81) | 0.0009 |
| Jack Russell Terrier | 2 | 72 | 5.65 (1.33–23.98) | 0.0081 |
| Maltese | 4 | 166 | 4.90 (1.72–13.99) | 0.001 |
| Miniature Dachshund | 6 | 347 | 3.52 (1.46–8.45) | 0.0027 |
| Miniature Poodle | 6 | 355 | 3.44 (1.43–8.25) | 0.0033 |
| Yorkshire Terrier | 7 | 415 | 3.43 (1.51–7.80) | 0.0018 |
| Labrador | 5 | 408 | 2.49 (0.97–6.42) | 0.05 |
| German Shepherd | 2 | 284 | 1.43 (0.34–6.00) | 0.62 |
| Beagle | 2 | 623 | 0.65 (0.16–2.73) | 0.5 |
NA: not applicable; CI: confidence interval.