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Table 1 Clinicopathologic parameters of the female dogs included in the study and their tumours

From: Vitamin D receptor (VDR) expression in different molecular subtypes of canine mammary carcinoma

Variable

Range

No. of samples

Percent (%)

Age at diagnosis

<10 years

20

44.5

≥10 years

25

55.5

Breed

Pure

22

48.9

Crossing

23

51.1

No. of tumours

One

20

44.5

More than one

25

55.5

Tumour size

<3 cm

43

74.1

≥3 cm

15

25.9

Lymphatic invasion

Yes

16

27.6

No

42

72.4

Histologic subtype

Simple

21

36.2

Complex

27

46.6

Mixed

10

17.2

Histologic grade

Grade 1

29

50.0

Grade 2

18

31.0

Grade 3

11

19.0

VDR expression

Positive cases

16

27.6

Negative cases

42

72.4

Molecular subtype

Luminal A

21

36.2

Luminal B

11

19.0

HER2-overexpression

6

10.3

Triple-negative

20

34.5

 Basal-like

18

31.0

 Non basal-like

2

3.4