Table 2.
Comparative demography between three individual 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 dogs attending primary-care veterinary practices in England (200 dogs of each breed type)
| Variable | Category | Bulldog No. (%) | French bulldog No. (%) | Pug No. (%) | Border terrier No. (%) | West highland white terrier No. (%) | Yorkshire terrier No. (%) | P-value |
|---|---|---|---|---|---|---|---|---|
| Sex/neuter | Female entire | 80 (40.4) | 83 (42.6) | 73 (37.1) | 52 (26.0) | 51 (25.5) | 57 (28.5) | <0.001 |
| Female neutered | 15 (7.6) | 11 (5.6) | 17 (8.6) | 36 (18.0) | 43 (21.5) | 36 (18.0) | ||
| Male entire | 87 (43.9) | 94 (48.2) | 88 (44.7) | 74 (37.0) | 66 (33.0) | 71 (35.5) | ||
| Male neutered | 16 (8.1) | 7 (3.6) | 19 (9.6) | 38 (19.0) | 40 (20.0) | 36 (18.0) | ||
| Insured | Insured | 49 (24.5) | 20 (10.0) | 34 (17.0) | 53 (26.5) | 60 (30.0) | 46 (23.0) | <0.001 |
| Not insured | 151 (75.5) | 180 (90.0) | 166 (83.0) | 147 (73.5) | 140 (70.0) | 154 (77.0) | ||
| Bodyweight: Median (IQRa, range) | 27.7 (23.6–31.0, 11.4–41.0) | 12.2 (11.0–14.0, 1.6–19.0) | 8.9 (8.0–10.2, 4.9–14.1) | 10.0 (8.6–11.2, 4.0–20.7) | 9.5 (8.3–11.0, 5.8–14.2) | 4.75 (3.4–6.0, 1.5–11.2) | <0.001 | |
| Age (years) at final EPRb: Median (IQRa, range) | 2.0 (0.6–4.2, 0.0–14.0) | 1.2 (0.4–2.5, 0.0–13.0) | 2.0 (0.4–3.8, 0.0–13.0) | 5.2 (2.3–9.1, 0.0–18.2) | 6.9 (3.4–10.6, 0.2–17.9) | 5.3 (2.0–10.3, 0.0–17.0) | <0.001 | |
| Time in study (years): Median (IQRa, range) | 0.2 (0.0–1.2, 0.0–4.0) | 0.2 (0.0–0.9, 0.0–3.2) | 0.2 (0.0–1.2, 0.0–4.3) | 1.0 (0.0–2.4, 0.0–4.6) | 1.0 (0.0–2.5, 0.0–5.0) | 0.8 (0.0–2.2, 0.0–4.6) | <0.001 |
aIQR interquartile range
b EPR electronic patient record