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Table 5 Multivariable logistic regression results for variables that replaced breed in risk factor analysis for osteosarcoma during 2016 in dogs under primary veterinary care in the VetCompassâ„¢ Programme in the UK. Column percentages shown in brackets. aCI confidence interval. (note: Adult bodyweight replaced both breed and relative bodyweight)

From: Dog breeds and conformations predisposed to osteosarcoma in the UK: a VetCompass study

Variable

Category

Odds ratio

95% CIa

Category P-value

Variable P-value

Breed purity

Crossbred

Base

  

0.613

Designer

1.10

0.53–2.32

0.794

 

Purebred

1.15

0.87–1.52

0.329

 

Kennel Club Recognised Breed

Not recognised

Base

  

0.373

Recognised

1.12

0.87–1.45

0.378

 

Kennel Club Breed Group

Not Kennel Club recognised breed

Base

  

 < 0.001

Working

8.70

6.43–11.79

 < 0.001

 

Hound

3.91

2.67–5.72

 < 0.001

 

Gundog

1.21

0.87–1.69

0.264

 

Pastoral

0.92

0.55–1.52

0.736

 

Utility

0.31

0.15–0.64

0.002

 

Terrier

0.23

0.13–0.40

 < 0.001

 

Toy

0.11

0.04–0.31

 < 0.001

 

Chondrodystrophy

Non chondrodystrophic

Base

  

 < 0.001

Chondrodystrophic

0.10

0.06–0.15

 < 0.001

 

Uncategorised

0.48

0.37–0.63

 < 0.001

 

Skull conformation

Mesocephalic

Base

  

 < 0.001

Brachycephalic

0.50

0.32–0.80

0.004

 

Dolichocephalic

2.72

2.06–3.58

 < 0.001

 

Uncategorised

0.96

0.73–1.27

0.791

 

Haircoat length

Medium

Base

  

 < 0.001

Short

3.08

2.22–4.26

 < 0.001

 

Long

0.41

0.19–0.92

0.031

 

Uncategorised

1.60

1.09–2.33

0.015

 

Adult (> 18 months) bodyweight (kg)

 < 10.0

0.15

0.05–0.43

 < 0.001

 

10.0—< 20.0

Base

  

 < 0.001

20.0—< 30.0

3.39

2.12–5.42

 < 0.001

 

30.0—< 40.0

6.68

4.22–10.56

 < 0.001

 

40.0—< 50.0

14.54

8.89–23.78

 < 0.001

 

50.0—< 60.0

43.12

24.52–75.82

 < 0.001

 

 ≥ 60.0

36.62

16.35–82.01

 < 0.001

 

Uncategorised

3.51

2.22–5.55

 < 0.001

 
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Canine Medicine and Genetics

ISSN: 2662-9380