Table 1 Infection rates of Cryptosporidium spp. and Giardia duodenalis in dogs by sex, breed, age, sample source and clinical signs

Sex

 Female

291

22 (7.6)

1.7 (0.7–3.7)

0.213

36 (12.4)

2.1 (1.1–4.2)

0.029*

 Male

191

9 (4.7)

0.6 (0.3–1.3)

12 (6.3)

0.5 (0.2–0.9)

 Unknown

159

13 (8.2)

12 (7.5)

Breed

 Purebred

446

29 (6.5)

1.1 (0.4–2.9)

0.891

48 (10.8)

4.8 (1.1–20.3)

0.018*

 Mixed-breed

82

5 (6.1)

0.9 (0.3–2.5)

2 (2.4)

0.2 (0–0.9)

Unknown

113

10 (8.8)

10 (8.8)

Age (months)

 ≤ 6

125

15 (12.0)

2.6 (1.3–5.3)

0.006**

14 (11.2)

1.3 (0.7–2.5)

0.455

 > 6

402

20 (5.0)

0.4 (0.2–0.8)

36 (9.0)

0.8 (0.4–1.5)

 Unknown

114

9 (7.9)

10 (8.8)

Sample source

 Household

79

11 (13.9)

2.6 (1.3–5.4)

0.008**

8 (10.1)

1.1 (0.5–2.4)

0.803

 Pet shop

118

13 (11.0)

2.0 (1.0–3.9)

0.048*

12 (10.2)

1.1 (0.6–2.2)

0.738

 Pet shelter

134

9 (6.7)

1.0 (0.5–2.1)

0.939

10 (7.5)

0.7 (0.4–1.5)

0.397

 Research center

201

7 (3.5)

0.4 (0.2–0.9)

0.022*

27 (13.4)

1.9 (1.1–3.3)

0.017*

 Veterinary clinic

109

4 (3.7)

0.5 (0.2–1.3)

0.148

3 (2.8)

0.2 (0.1–0.8)

0.009**

Clinical signs

 Diarrheic

17

2 (11.8)

1.8 (0.4–8.3)

0.418

2 (11.8)

1.3 (0.3–5.8)

0.730

 Non-diarrheic

624

42 (6.7)

0.5 (0.1–2.4)

58 (9.3)

0.8 (0.2–3.4)

 Total

641

44 (6.9)

60 (9.4)