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Table 6 Final multivariable logistic regression model evaluating risk factors for association with diagnosis of at least one upper respiratory tract disorder in dogs attending primary-care veterinary practices in England. Breed type was the factor of primary interest

From: Epidemiological associations between brachycephaly and upper respiratory tract disorders in dogs attending veterinary practices in England

Variable

Category

Odds ratio

95 % CI

P-valuea

Breed type

West Highland White

Base

 

(< 0.001)

 

Border Terrier

1.4

0.6–2.9

0.409

 

Yorkshire Terrier

2.2

1.1–4.5

0.026

 

Bulldog

4.0

2.1–7.9

< 0.001

 

French Bulldog

5.1

2.6–10.2

< 0.001

 

Pug

6.9

3.6–13.3

< 0.001

Bodyweight categories within extreme brachycephalic and moderate and non-brachycephalic categories

High

Base

 

(< 0.001)

 

Mid

1.3

0.8–2.1

0.324

 

Low

1.8

1.1–2.9

0.020

 

No recorded bodyweight

0.6

0.4–1.1

0.079

Insurance

Non-insured

Base

  
 

Insured

1.9

1.3–2.8

0.002

  1. aFor variables with >2 categories, the overall P-value is shown in brackets