Research Article

Prevalence and Risk Factors of Colonization with Staphylococcus aureus in Healthy Pet Cats Kept in the City Households

Table 3

The statistical analysis results of risk factors associated with the colonization of S. aureus in cats under investigation.

VariableTestS. aureusMRSA
valueOR95% CI valueOR95% CI

Breed (crossbreed or pedigree)Chi-squared0.290.7280.43–1.240.210.5370.23–1.27
AgeWilcoxon0.260.12
SexChi-squared0.461.260.74–2.130.531.430.61–3.4
Number of the household residents who had close contact with the cat under investigationWilcoxon0.022 0.08
The family member works in healthcare or in veterinary healthcareChi-squared0.0032 2.291.33–3.920.019 2.91.23–6.95
Hospitalization of an owner in the previous yearChi-squared0.0750.4570.18–0.980.120.2120.01–1.03
Diagnosis of S. aureus colonization in the previous year: in household resident or cat under investigation or other animals kept in the household (confirmation of the colonization using laboratory methods)Chi-squared0.013 1.560.92–2.630.016 3.491.26–8.76
Number of animals kept in the same household
 DogsWilcoxon0.0078 0.017
 CatsWilcoxon0.240.16
 OthersWilcoxon0.760.87
Treatment of cat under investigation in the previous yearChi-squared0.00056 2.581.51–4.40.015 3.011.28–7.31
Treatment of other pets in the previous year Chi-squared0.651.170.69–1.970.751.260.53–2.99

MRSA: methicillin-resistant Staphylococcus aureus; value: probability value; results statistically significant; Chi-squared: degrees of freedom is 1.