Retrospective and Prospective Investigations about “Quatrefoil” Erythrocytes in Canine Blood Smears

Table 2

Sex, age, and breed of dogs included in the second survey (1,569 dogs—133 dogs with qRBCs = 8.47%) 3,081 CBCs were investigated and 138 CBCs showed qRBCs (4.47%).

	No. of dogs	% Dogs
Sex
Males	70	52.6
Females	63	47.4
Chi squared	𝑃>0.05
Age
Puppies (0–12 m)	14	10.5
Adults (13 m–6 y)	45	33.8
Elderly (>7 y)	74	55.7
Chi squared	𝑃<0.0001
Breed
Mixed	41	30.8
German Shepherd	16	12.0
Golden Retriever	9	6.8
Labrador	8	6.0
Setter	7	5.3
Border Collie	5	3.8
Boxer	4	3.0
Epagneul Breton	4	3.0
Other breed	36	27.2
Fisher exact test	𝑃>0.05

m: month; y: year.