Table 2. The breed of canine mammary gland tumor (CMT) cases.

Breed	Total cases n (%)	Non-CMT cases n (%)	CMT cases n (%)	Benign CMT cases		Malignant CMT cases
				Female n (%)	Male n (%)	Female n (%)	Male n (%)
Alaskan Malamute	1 (0.1)	0 (0.0)	1 (0.3)	0 (0.0)	0 (0.0)	1 (0.3)	0 (0.0)
Alsatian	1 (0.1)	1 (0.1)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
American bully	2 (0.1)	2 (0.2)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
American Pitbull Terrier	11 (0.8)	9 (0.9)	2 (0.5)	0 (0.0)	0 (0.0)	1 (0.3)	1 (14.3)
Bangkaew	25 (1.8)	21 (2.1)	4 (1.1)	0 (0.0)	0 (0.0)	4 (1.3)	0 (0.0)
Basset hound	1 (0.1)	1 (1.0)	0 (0.0)	0 (0.0)	0 (0.0)	04 (0.0)	0 (0.0)
Beagle	15 (1.1)	10 (1.0)	5 (1.3)	1 (1.9)	0 (0.0)	4 (1.3)	0 (0.0)
Boston-terrier	1 (0.1)	1 (0.1)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Boxer	1 (0.1)	1 (0.1)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Bull dog	6 (0.4)	5 (0.5)	1 (0.3)	0 (0.0)	0 (0.0)	1 (0.3)	0 (0.0)
Bull terrier	3 (0.2)	3 (0.3)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Chihuahua	18 (1.3)	11 (1.1)	7 (1.9)	0 (0.0)	0 (0.0)	7 (2.3)	0 (0.0)
Chow Chow	3 (0.2)	2 (0.2)	1 (0.3)	0 (0.0)	0 (0.0)	1 (0.3)	0 (0.0)
Clumber spaniel	1 (0.1)	1 (0.1)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Cocker Spanial	39 (2.8)	25 (2.5)	14 (3.8)	1 (1.9)	0 (0.0)	13 (4.2)	0 (0.0)
Collie	1 (0.1)	1 (0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Dachshund	5 (0.4)	2 (0.2)	3 (0.8)	2 (3.7)	0 (0.0)	1 (2.3)	0 (0.0)
Dalmatian	3 (0.2)	2 (0.2)	1 (0.3)	0 (0.0)	0 (0.0)	1 (0.3)	0 (0.0)
Doberman	1 (0.1)	1 (0.1)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Dogue de Bordeaux	1 (0.1)	1 (0.1)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
English cocker	3 (0.2)	3 (0.3)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
French bulldog	8 (0.6)	6 (0.6)	2 (0.5)	0 (0.0)	0 (0.0)	2 (0.6)	0 (0.0)
German Shepherd	10 (0.7)	7 (0.7)	3 (0.8)	3 (5.6)	0 (0.0)	0 (0.0)	0 (0.0)
Golden Retriever	112 (8.1)	94 (9.2)	18 (4.8)	4 (7.4)	0 (0.0)	13 (4.2)	1 (14.3)
Jack Russell	1 (0.1)	0 (0.0)	1 (0.3)	1 (1.9)	0 (0.0)	0 (0.0)	0 (0.0)
Labrador Retriever	43 (3.1)	36 (3.5)	7 (1.9)	2 (3.7)	0 (0.0)	5 (1.6)	0 (0.0)
Miniature Pinscher	24 (1.7)	19 (1.9)	5 (1.3)	0 (0.0)	0 (0.0)	5 (1.6)	0 (0.0)
Mixed	645 (46.4)	486 (47.7)	159 (42.6)	19 (35.2)	2 (100.0)	134 (43.2)	4 (57.1)
Pekingese	4 (0.3)	3 (0.3)	1 (0.3)	0 (0.0)	0 (0.0)	1 (0.3)	0 (0.0)
Pomeranian	21 (1.5)	18 (1.8)	3 (0.8)	1 (1.9)	0 (0.0)	2 (0.6)	0 (0.0)
Poodle	177 (12.7)	96 (9.3)	81 (21.7)	13 (24.1)	0 (0.0)	67 (21.6)	1 (14.3)
Pug	14 (1.0)	10 (1.0)	4 (1.1)	1 (1.9)	0 (0.0)	3 (1.0)	0 (0.0)
Rottweiler	11 (0.8)	10 (1.0)	1 (0.3)	0 (0.0)	0 (0.0)	1 (0.3)	0 (0.0)
Saint Bernard	2 (0.1)	2 (0.2)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Samoyed	1 (0.1)	1 (0.1)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Schnauzer	3 (0.2)	3 (0.3)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Shar-pei	1 (0.1)	1 (0.1)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Shi-tzu	129 (9.3)	90 (8.8)	39 (10.5)	5 (9.3)	0 (0.0)	34 (11.0)	0 (0.0)
Siberian Husky	20 (1.4)	16 (1.6)	4 (1.1)	0 (0.0)	0 (0.0)	4 (1.3)	0 (0.0)
Spitz	6 (0.4)	3 (0.3)	3 (0.8)	1 (1.9)	0 (0.0)	2 (0.6)	0 (0.0)
Thai Ridgeback	10 (0.7)	10 (1.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Yorkshire Terrier	7 (0.5)	4 (0.4)	3 (0.8)	0 (0.0)	0 (0.0)	3 (1.0)	0 (0.0)
	1,391 (100.0)	1,018 (100.0)	373 (100.0)	54 (100.0)	2 (100.0)	310 (100.0)	7 (100.0)