Table 4 Comparative prevalence values (%) for upper respiratory tract (URT) disorders recorded in three extreme brachycephalic breed types (Bulldog, French Bulldog, Pug) and three other breed types (moderate brachycephalic: Yorkshire Terrier, non-brachycephalic: Border Terrier, West Highland White Terrier) of dog attending primary-care veterinary practices in England (200 dogs of each breed type)
Variable | Bulldog (n = 200) No. (%) | French bulldog (n = 200) No. (%) | Pug (n = 200) No. (%) | Border terrier (n = 200) No. (%) | West highland white terrier (n = 200) No. (%) | Yorkshire terrier (n = 200) No. (%) | P-value |
|---|---|---|---|---|---|---|---|
Proportion of dogs with at least one URT disorder | 39 (19.5) | 40 (20.0) | 53 (26.5) | 18 (9.0) | 14 (7.0) | 26 (13.0) | <0.001 |
Proportion of dogs with a URT disorder affecting this anatomic site | |||||||
Nares/Nasal Cavity | 15 (7.5) | 24 (12.0) | 29 (14.5) | 8 (4.0) | 7 (3.5) | 8 (4.0) | <0.001 |
Hard and soft palate | 5 (2.5) | 6 (3.0) | 8 (4.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0.001 |
Pharynx | 2 (1.0) | 2 (1.0) | 4 (2.0) | 1 (0.5) | 2 (1.0) | 1 (0.5) | 0.695 |
Tonsil | 0 (0.0) | 3 (1.5) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (0.5) | 0.051 |
Larynx | 1 (0.5) | 3 (1.5) | 3 (1.5) | 1 (0.5) | 0 (0.0) | 0 (0.0) | 0.217 |
Trachea | 7 (3.5) | 12 (6.0) | 11 (5.5) | 10 (5.0) | 8 (4.0) | 20 (10.0) | 0.074 |
BOAS (brachycephalic obstructive airway syndrome) | 5 (2.5) | 3 (1.5) | 13 (6.5) | 0 (0.0) | 0 (0.0) | 0 (0.0) | <0.001 |
Multi-site URT | 21 (10.5) | 21 (10.5) | 26 (13.0) | 5 (2.5) | 2 (1.0) | 4 (2.0) | <0.001 |