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Table 2 Frequency of DEA 1+ blood type in breeds including at least 15 dogs, statistical analysis results and summary of published data**

From: Frequency of DEA 1 antigen in 1037 mongrel and PUREBREED dogs in ITALY

Breed n° of dogs % DEA 1+ P value Chi-square OR 95% CI for OR % DEA 1+ and location in literature
Rottweiler 15 100 <0.01*   9.02 1.17–69.67 100 B1; 88P; 86 B2; 78 SA
Bernese Mountain dog 50 94 < 0.01 18.6 9.4 2.84–31.32 100 S
Briquet Griffon Vendéen 32 94 < 0.01 12.21 9.02 2.10–38.82 None
English setter 21 86 0.03 4.51 3.61 1.03–12.65 53 J
Golden Retriever 77 83 < 0.01 11.01 2.96 1.53–5.73 95 B1
Labrador Retriever 69 77 0.03 4.76 1.99 1.06–3.73 87 I; 55 SA; 45 P
Ariegeois 55 73 0.16 2.01 1.60 0.83–3.09 None
Newfoundland 21 62 0.96 0.02 0.98 0.39–2.46 None
Italian short/rough-haired hound 16 62 0.99 0 1.00 0.35–2.87 None
  1. *calculated by Fisher’s exact test; **only data obtained from breed with ≥15 dogs were reported
  2. B1 Brazil, [17]; B2 Brazil, [20]; I India, [27]; J Japan, [19]; P Portugal, [26]; S Switzerland, [28]; SA South Africa: [21]