Table 1 Descriptive and univariable logistic regression results for breed as a risk factor for hypothyroidism during 2016 in dogs under primary veterinary care in the VetCompass Programme in the UK

Crossbreed

332 (0.17)

194,337 (99.83)

Base

 < 0.001

Tibetan terrier

52 (2.78)

1817 (97.22)

16.75

12.46–22.52

 < 0.001

Standard Doberman pinscher

62 (2.52)

2399 (97.48)

15.13

11.5–19.90

 < 0.001

Boxer

184 (1.95)

9258 (98.05)

11.63

9.70–13.95

 < 0.001

Shetland sheepdog

24 (1.92)

1224 (98.08)

11.48

7.56–17.43

 < 0.001

American cocker spaniel

10 (1.89)

519 (98.11)

11.28

5.98–21.28

 < 0.001

Irish red setter

10 (1.41)

698 (98.59)

8.39

4.45–15.80

 < 0.001

Rhodesian ridgeback

19 (1.33)

1406 (98.67)

7.91

4.97–12.60

 < 0.001

Golden retriever

106 (1.08)

9687 (98.92)

6.41

5.14–7.98

 < 0.001

Alaskan malamute

20 (1.04)

1896 (98.96)

6.17

3.92–9.72

 < 0.001

Japanese akita inu

12 (0.76)

1558 (99.24)

4.51

2.53–8.04

 < 0.001

Miniature schnauzer

43 (0.51)

8354 (99.49)

3.01

2.19–4.14

 < 0.001

Dalmatian

13 (0.48)

2707 (99.52)

2.81

1.61–4.90

 < 0.001

Border terrier

40 (0.41)

9611 (99.59)

2.44

1.75–3.38

 < 0.001

Beagle

31 (0.38)

8039 (99.62)

2.26

1.56–3.26

 < 0.001

English cocker spaniel

122 (0.37)

32,953 (99.63)

2.17

1.76–2.67

 < 0.001

English springer spaniel

63 (0.31)

20,145 (99.69)

1.83

1.40–2.40

 < 0.001

Breed—others

262 (0.31)

84,136 (99.69)

1.82

1.55–2.14

 < 0.001

Labrador retriever

182 (0.30)

59,781 (99.70)

1.78

1.49–2.14

 < 0.001

Dogue de Bordeaux

9 (0.30)

3023 (99.70)

1.74

0.90–3.38

0.101

Chinese shar-pei

10 (0.27)

3639 (99.73)

1.61

0.86–3.02

0.139

Siberian husky

22 (0.26)

8366 (99.74)

1.54

1.00–2.37

0.050

Border collie

62 (0.25)

24,326 (99.75)

1.49

1.14–1.96

0.004

German shepherd dog

52 (0.24)

21,319 (99.76)

1.43

1.07–1.91

0.017

Pomeranian

15 (0.24)

6206 (99.76)

1.41

0.84–2.37

0.189

Rottweiler

17 (0.23)

7268 (99.77)

1.37

0.84–2.23

0.207

Greyhound

12 (0.22)

5444 (99.78)

1.29

0.72–2.30

0.386

Breed not recorded

7 (0.21)

3279 (99.79)

1.25

0.59–2.64

0.560

Toy poodle

8 (0.21)

3766 (99.79)

1.24

0.62–2.51

0.543

Staffordshire bull terrier

97 (0.18)

52,958 (99.82)

1.07

0.85–1.34

0.546

Patterdale terrier

7 (0.16)

4448 (99.84)

0.92

0.44–1.95

0.830

Lurcher

9 (0.15)

6013 (99.85)

0.88

0.45–1.70

0.696

Labradoodle

10 (0.13)

7475 (99.87)

0.78

0.42–1.47

0.446

West Highland white terrier

23 (0.12)

18,855 (99.88)

0.71

0.47–1.09

0.118

American bulldog

3 (0.09)

3221 (99.91)

0.55

0.17–1.70

0.296

Cavalier King Charles spaniel

16 (0.09)

17,242 (99.91)

0.54

0.33–0.90

0.017

Jack Russell terrier

45 (0.09)

48,525 (99.91)

0.54

0.40–0.74

 < 0.001

Whippet

4 (0.09)

4682 (99.91)

0.50

0.19–1.34

0.168

Bichon frise

11 (0.08)

13,258 (99.92)

0.49

0.27–0.89

0.018

Miniature dachshund

4 (0.08)

4824 (99.92)

0.49

0.18–1.30

0.151

British bulldog

7 (0.07)

9392 (99.93)

0.44

0.21–0.92

0.030

Yorkshire terrier

21 (0.07)

28,159 (99.93)

0.44

0.28–0.68

 < 0.001

Lhasa apso

9 (0.07)

12,540 (99.93)

0.42

0.22–0.81

0.010

Maltese

2 (0.06)

3246 (99.94)

0.36

0.09–1.45

0.151

Sprocker

2 (0.06)

3336 (99.94)

0.35

0.09–1.41

0.140

Shih-tzu

16 (0.05)

32,894 (99.95)

0.28

0.17–0.47

 < 0.001

Chihuahua

11 (0.03)

36,783 (99.97)

0.18

0.10–0.32

 < 0.001

Pug

3 (0.02)

16,211 (99.98)

0.11

0.03–0.34

 < 0.001

Cockapoo

3 (0.02)

18,249 (99.98)

0.10

0.03–0.30

 < 0.001

French bulldog

1 (0.01)

16,396 (99.99)

0.04

0.01–0.25

0.001

Cavachon

0 (0.00)

3535 (100.00)

 ~ 

Cavapoo

0 (0.00)

4035 (100.00)

 ~