Table 3. Prevalence and risk of meningioma in each dog breed.

Breed	No. of dogs examined	No. of primary intracranial tumor	No. of meningioma	% Meningioma of the breed within the total number of meningioma	% Meningioma within the breed	% Meningioma within all primary intracranial tumors of the breed	Odds ratio	95% CI	P value a)
	(A)	(B)	(C)	(C/81 × 100)	(C/A × 100)	(C/B × 100)
Rough Collie	6	2	2	2.5	33.3	100.0	58.133	10.496–321.982	<0.001†
Golden Retriever	426	16	14	17.3	3.3	87.5	4.451	2.481–7.985	<0.001†
Miniature Schnauzer	241	11	7	8.6	2.9	63.6	3.620	1.650–7.943	<0.001†
Scottish Terrier	13	1	1	1.2	7.7	100.0	9.559	1.228–74.392	0.008†
Chihuahua	443	8	7	8.6	1.6	87.5	1.899	0.870–4.147	0.102
Labrador Retriever	406	9	1	1.2	0.2	11.1	0.271	0.038–1.953	0.165
Siberian Husky	33	3	1	1.2	3.0	33.3	3.577	0.483–26.496	0.182
Toy Poodle	527	9	7	8.6	1.3	77.8	1.577	0.723–3.440	0.248
Yorkshire Terrier	320	2	1	1.2	0.3	50.0	0.348	0.048–2.506	0.272
French Bulldog	293	25	1	1.2	0.3	4.0	0.381	0.053–2.746	0.320
German Shepherd dog	47	1	1	1.2	2.1	100.0	2.485	0.338–18.236	0.354
Miniature Dachshund	1,420	13	10	12.3	0.7	76.9	0.777	0.400–1.510	0.456
Papillion	200	1	1	1.2	0.5	100.0	0.565	0.078–4.078	0.566
Shiba-Inu	339	3	2	2.5	0.6	66.7	0.665	0.163–2.717	0.567
Pug	157	2	2	2.5	1.3	100.0	1.476	0.359–6.058	0.587
Shetland Sheepdog	260	4	3	3.7	1.2	75.0	1.337	0.419–4.263	0.623
West Highland White Terrier	71	1	1	1.2	1.4	100.0	1.628	0.223–11.867	0.627
Pembroke Welsh Corgi	422	16	3	3.7	0.7	18.8	0.805	0.253–2.561	0.713
Jack Russell Terrier	158	2	1	1.2	0.6	50.0	0.719	0.099–5.200	0.743
Bernese Mountain dog	92	1	1	1.2	1.1	100.0	1.250	0.172–9.078	0.825
Mixed breed dog	852	12	8	9.9	0.9	66.7	1.084	0.520–2.256	0.830
Maltese	209	2	2	2.5	1.0	100.0	1.099	0.268–4.500	0.896
Shih Tzu	456	5	4	4.9	0.9	80.0	1.004	0.366–2.756	0.994
Total	7,391	149	81	100.0

a) Breeds with a P<0.05 (†) were considered to have a significantly higher risk of the occurrence of meningioma than the rest of the evaluated population.