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

From: Genetic characterization of Cryptosporidium spp. and Giardia duodenalis in dogs and cats in Guangdong, China

VariablenCryptosporidium spp.G. duodenalis
No. positive (%)OR (95% CI)P-valueNo. positive (%)OR (95% CI)P-value
Sex
 Female29122 (7.6)1.7 (0.7–3.7)0.21336 (12.4)2.1 (1.1–4.2)0.029*
 Male1919 (4.7)0.6 (0.3–1.3)12 (6.3)0.5 (0.2–0.9)
 Unknown15913 (8.2)  12 (7.5)  
Breed
 Purebred44629 (6.5)1.1 (0.4–2.9)0.89148 (10.8)4.8 (1.1–20.3)0.018*
 Mixed-breed825 (6.1)0.9 (0.3–2.5)2 (2.4)0.2 (0–0.9)
Unknown11310 (8.8)  10 (8.8)  
Age (months)
 ≤ 612515 (12.0)2.6 (1.3–5.3)0.006**14 (11.2)1.3 (0.7–2.5)0.455
 > 640220 (5.0)0.4 (0.2–0.8)36 (9.0)0.8 (0.4–1.5)
 Unknown1149 (7.9)  10 (8.8)  
Sample source
 Household7911 (13.9)2.6 (1.3–5.4)0.008**8 (10.1)1.1 (0.5–2.4)0.803
 Pet shop11813 (11.0)2.0 (1.0–3.9)0.048*12 (10.2)1.1 (0.6–2.2)0.738
 Pet shelter1349 (6.7)1.0 (0.5–2.1)0.93910 (7.5)0.7 (0.4–1.5)0.397
 Research center2017 (3.5)0.4 (0.2–0.9)0.022*27 (13.4)1.9 (1.1–3.3)0.017*
 Veterinary clinic1094 (3.7)0.5 (0.2–1.3)0.1483 (2.8)0.2 (0.1–0.8)0.009**
Clinical signs
 Diarrheic172 (11.8)1.8 (0.4–8.3)0.4182 (11.8)1.3 (0.3–5.8)0.730
 Non-diarrheic62442 (6.7)0.5 (0.1–2.4)58 (9.3)0.8 (0.2–3.4)
 Total64144 (6.9)  60 (9.4)  
  1. Abbreviation: n; total number of samples
  2. P < 0.05, ** P < 0.01