Table 4.

Odds ratios for previous and subsequent diagnoses for 13 breeds with increased RR for URT disorders, compared to age-matched controls, in a Swedish cohort of insured dogs.

Breed	OR of prior diagnosis to first URT claim, with 95% CI	OR of subsequent diagnosis to first URT claim, with 95% CI
Boston terrier	7.41 (1.92–28.6, p = 0.003)	25.41 (3.20–201.60, p = 0.002)
Boxer	7.60 (3.81–15.17, p < 0.001)*	9.83 (4.00–24.18, p < 0.001)*
CKCS	3.24 (2.26–4.65, p < 0.001)*	6.40 (4.02–10.21, p < 0.001)*
Chihuahua	2.48 (1.78–3.46, p < 0.001)*	4.34 (3.01–6.25, p < 0.001)*
English bulldog	3.79 (1.66–8.63, p = 0.001)*	3.99 (1.65–9.68, p = 0.002)
French bulldog	4.01 (2.56–6.27, p < 0.001)*	4.51 (2.79–7.30, p < 0.001)*
Irish wolfhound	7.11 (2.19–23.11, p = 0.001)*	2.80 (0.91–8.63, p = 0.072)
Japanese chin	0.70 (0.19–2.65, p = 0.602)	4.29 (1.06–17.31, p = 0.040)
Norwich terrier	1.65 (0.56–4.86, p = 0.364)	1.66 (0.54–5.06, p = 0.373)
Pomeranian	2.26 (1.31–3.91, p = 0.003)	3.21 (1.80–5.73, p < 0.001)*
Pug	4.06 (2.60–6.33, p < 0.001)*	5.13 (3.20–8.24, p < 0.001)*
Standard poodle	4.38 (2.51–7.66, p < 0.001)*	6.72 (3.56–12.69, p < 0.001)*
Yorkshire terrier	1.75 (1.05–2.91, p = 0.030)	2.03 (1.21–3.41, p = 0.008)

Breeds in bold text = brachycephalic breeds.

OR; odds ratio.

*OR significantly increased after BF correction (significance level after BF correction 0.05/26).