Table 1.

Breed-associated risk for the development of gastric carcinoma.

	Breed	Frequency (%)	OR	[95% CI]
*	American cocker spaniel	0.01	0.21	[0.09% to 0.49%]
*	German shepherd	0.02	0.32	[0.16% to 0.61%]
	Shetland sheepdog	0.03	0.53	[0.22% to 1.3%]
*	Labrador retriever	0.03	0.53	[0.35% to 0.80%]
	Yorkshire terrier	0.04	0.64	[0.26% to 1.5%]
*	Mixed breed	0.05	0.73	[0.59% to 0.91%]
	Poodle, miniature	0.05	0.78	[0.42% to 1.5%]
	Schnauzer, miniature	0.05	0.80	[0.40% to 1.6%]
	Golden retriever	0.06	0.92	[0.62% to 1.4%]
	Boston terrier	0.07	1.2	[0.49% to 2.9%]
	English springer spaniel	0.07	1.2	[0.62% to 2.3%]
	Lhasa apso	0.07	1.2	[0.57% to 2.6%]
	Collie	0.08	1.3	[0.68% to 2.4%]
	Greyhound	0.09	1.4	[0.60% to 3.5%]
	Siberian husky	0.09	1.5	[0.75% to 2.8%]
	Shih tzu	0.10	1.6	[0.92% to 2.8%]
	Border collie	0.12	2.0	[0.88% to 4.4%]
**	Samoyed	0.14	2.4	[1.2% to 4.6%]
**	Cairn terrier	0.19	3.1	[1.4% to 6.9%]
**	West Highland white terrier	0.21	3.4	[1.9% to 6.1%]
**	Basset hound	0.22	3.6	[2.2% to 5.9%]
**	Poodle, standard	0.23	4.0	[2.6% to 6.1%]
**	Irish setter	0.30	5.1	[3.3% to 8.1%]
**	Norwegian elkhound	0.41	6.9	[3.4% to 14%]
**	Keeshond	0.44	7.4	[4.2% to 13%]
**	Bouvier des Flandres	0.66	11	[6.6% to 19%]
**	Belgian herding dogs	0.74	12	[6.8% to 23%]
**	Scottish terrier	0.74	13	[9.0% to 19%]
**	Chow chow	0.75	14	[11% to 18%]

The VMDB database was searched to identify dogs with a diagnosis of gastric carcinoma between 1983 and 2003. For dog breeds with at least 5 affected animals, the frequency of the diagnosis of gastric cancer (Frequency), the odds ratio (OR) for the diagnosis of gastric cancer, and the 95% confidence interval [95% CI] were calculated. Breed designations with statistically significant decrease or increase in risk are indicated by * and **, respectively.