Table 1 Characteristics of the study population

Number of dogs

40

40

40

Age (years)

12.1 (11.2–16)

3.4 (0.8–13)

3.7 (1.2–8.6) *

Weight (kg)

37 (27–56)

31.5 (20.6–64.8)

36 (20–62)

Sex (M(neut.)/F(spayed))

21(3)/19

14(1)/26(25)

17(1)/23(23)

 Labrador Retriever

40

11

3

 Golden Retriever

3

4

 Rottweiler

0

4

 Am. Staff Terrier

2

3

 Boxer

1

4

 Cane Corso

1

4

 Bernese Mount Dog

3

2

 Bulldog

4

3

 Australian Shepherd

1

3

 Mixed, other breeds

14

10