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Table 2 The influence of the risk factors, including host species (domestic cat and dog), age (adult, juvenile), sex (female, male) and season (Spring, Summer), on Enterocytozoon bieneusi prevalence (by PCR-based sequencing of the internal transcribed spacer, ITS), assessed using the Chi-square and Fisher’s exact tests

From: Enterocytozoon bieneusi genotypes in cats and dogs in Victoria, Australia

Risk factors (host/age/sex/season)

No. of samples tested

No. of test-negative samples

No. of test-positive samples (%)

Odds ratio (95% CI)

P-value

Chi-square

Host species

 Cat

172

167

5 (2.9)

1.532 (0.547–4.288)

0.478

0.413

 Dog

342

327

15 (4.4)

   

 Total

514

494

20 (3.9)

   

Age group

 Adult

371

361

10 (2.7)

3.112 (1.264–7.663)

0.016*

0.010*

 Juvenile

126

116

10 (7.9)

   

 Total

497

477

20 (4.0)

   

Sex

 Female

233

224

9 (3.9)

0.957 (0.382–2.397)

1.000

0.926

 Male

270

260

10 (3.7)

   

 Total

503

484

19 (3.8)

   

Season

 Spring

227

220

7 (3.1)

1.491 (0.585–3.801)

0.494

0.400

 Summer

287

274

13 (4.5)

   

 Total

514

494

20 (3.9)

   
  1. * = statistically significant (P < 0.05). df degree of freedom. Each df = 1 in this study
  2. The strength of association was measured using an odds ratio calculated with 95% confidence intervals (95% CI), and statistical significance was given as a P-value