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Table 1 Descriptive and univariable logistic regression results for risk factors associated with incident diagnoses during 2013 of elbow joint disease in dogs under primary veterinary care in the VetCompassâ„¢ Programme in the UK. Column percentages shown in brackets. *CI confidence interval

From: Epidemiology and clinical management of elbow joint disease in dogs under primary veterinary care in the UK

Variable

Category

Case No. (%)

Non-case No. (%)

Odds ratio

95% CI*

Category P-value

Variable P-value

Purebred status

Crossbred

100 (16.26)

110,124 (24.96)

Base

  

<  0.001

Purebred

515 (83.74)

331,113 (75.04)

1.72

1.38–2.12

<  0.001

 

Breed

Crossbreed

100 (16.23)

110,124 (24.87)

1.00

  

<  0.001

Labrador Retriever

189 (30.68)

30,894 (6.98)

6.74

5.29–8.59

<  0.001

 

Rottweiler

23 (3.73)

4999 (1.13)

5.07

3.22–7.98

<  0.001

 

Golden Retriever

21 (3.41)

5318 (1.20)

4.35

2.71–6.97

<  0.001

 

German Shepherd Dog

43 (6.98)

11,848 (2.68)

4.00

2.79–5.72

<  0.001

 

English Springer Spaniel

22 (3.57)

10,709 (2.42)

2.26

1.43–3.59

0.001

 

Other purebreds

100 (16.23)

82,952 (18.74)

1.33

1.01–1.75

0.045

 

Lhasa Apso

8 (1.30)

6773 (1.53)

1.30

0.63–2.67

0.474

 

Cavalier King Charles Spaniel

11 (1.79)

9924 (2.24)

1.22

0.65–2.28

0.53

 

Border Collie

13 (2.11)

11,834 (2.67)

1.21

0.68–2.16

0.519

 

Staffordshire Bull Terrier

32 (5.19)

31,897 (7.20)

1.10

0.74–1.65

0.624

 

Cocker Spaniel

14 (2.27)

15,458 (3.49)

1.00

0.57–1.75

0.993

 

Yorkshire Terrier

11 (1.79)

15,296 (3.45)

0.79

0.42–1.48

0.463

 

Unavailable

1 (0.16)

1502 (0.34)

0.73

0.10–5.26

0.758

 

Boxer

4 (0.65)

6075 (1.37)

0.73

0.27–1.97

0.529

 

Pug

2 (0.32)

5318 (1.20)

0.41

0.10–1.68

0.217

 

Jack Russell Terrier

10 (1.62)

27,407 (6.19)

0.40

0.21–0.77

0.006

 

West Highland White Terrier

4 (0.65)

11,838 (2.67)

0.37

0.14–1.01

0.053

 

Shih-tzu

5 (0.81)

14,882 (3.36)

0.37

0.15–0.91

0.03

 

Husky

1 (0.16)

4070 (0.92)

0.27

0.04–1.94

0.193

 

Bichon

1 (0.16)

6533 (1.48)

0.17

0.02–1.21

0.076

 

Chihuahua

1 (0.16)

11,709 (2.64)

0.09

0.01–0.67

0.019

 

Border Terrier

0 (0.00)

5379 (1.21)

~

~

~

 

Kennel Club Breed Group

Breed not Kennel Club recognised

121 (19.67)

147,800 (33.50)

Base

  

<  0.001

Toy

31 (5.04)

56,669 (12.84)

0.67

0.45–0.99

0.045

 

Utility

33 (5.37)

44,511 (10.09)

0.91

0.62–1.33

0.614

 

Terrier

49 (7.97)

57,913 (13.13)

1.03

0.74–1.44

0.846

 

Gundog

256 (41.63)

69,021 (15.64)

4.53

3.65–5.63

<  0.001

 

Hound

14 (2.28)

15,556 (3.53)

1.10

0.63–1.91

0.737

 

Pastoral

65 (10.57)

28,414 (6.44)

2.79

2.07–3.78

<  0.001

 

Working

46 (7.48)

21,353 (4.84)

2.63

1.87–3.70

<  0.001

 

Adult (>  18 months) bodyweight (kg)

<  10.0

36 (5.84)

98,298 (22.20)

Base

  

<  0.001

10.0 - < 20.0

89 (14.45)

89,741 (20.27)

2.71

1.84–3.99

<  0.001

 

20.0 - <  30.0

115 (18.67)

65,740 (14.85)

4.78

3.28–6.95

<  0.001

 

30.0 - < 40.0

187 (30.36)

43,560 (9.84)

11.72

8.20–16.75

<  0.001

 

≥ 40.0

147 (23.86)

23,153 (5.23)

17.34

12.04–24.97

<  0.001

 

Unavailable

42 (6.82)

122,247 (27.61)

0.94

0.60–1.46

0.779

 

Bodyweight relative to breed mean

Lower

200 (32.47)

179,134 (40.46)

Base

  

<  0.001

Equal/Higher

374 (60.71)

140,861 (31.82)

2.38

2.00–2.82

<  0.001

 

Unavailable

42 (6.82)

122,744 (27.72)

0.31

0.22–0.43

<  0.001

 

Age (years)

<  3.0 years

108 (17.53)

173,638 (39.22)

Base

  

<  0.001

3.0 - < 6.0 years

103 (16.72)

112,371 (25.38)

1.47

1.12–1.93

0.005

 

6.0 - < 9.0 years

142 (23.05)

74,082 (16.73)

3.08

2.40–3.96

<  0.001

 

9.0 - < 12.0 years

149 (24.19)

44,891 (10.14)

5.34

4.16–6.84

<  0.001

 

≥ 12.0 years

112 (18.18)

31,666 (7.15)

5.69

4.36–7.41

<  0.001

 

Unavailable

2 (0.32)

6091 (1.38)

0.53

0.13–2.14

0.371

 

Sex

Female

244 (39.61)

213,489 (48.22)

Base

  

<  0.001

Male

372 (60.39)

226,969 (51.26)

1.43

1.22–1.69

<  0.001

 

Unavailable

0 (0.00)

2281 (0.52)

~

~

~

 

Neuter

Entire

122 (19.81)

174,753 (39.47)

Base

  

<  0.001

Neutered

360 (58.44)

198,298 (44.79)

2.60

2.12–3.19

<  0.001

 

Unavailable

134 (21.75)

69,688 (15.74)

2.75

2.15–3.52

<  0.001

 

Insurance

Non-insured

27,320 (6.17)

41 (6.66)

Base

  

<  0.001

Insured

54,136 (12.23)

182 (29.55)

2.24

1.60–3.14

<  0.001

 

Unavailable

361,283 (81.60)

393 (63.80)

0.72

0.53–1.00

0.050

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