Table 3.
The statistical analysis results of risk factors associated with the colonization of S. aureus in cats under investigation.
| Variable | Test | S. aureus | MRSA | ||||
|---|---|---|---|---|---|---|---|
| p value | OR | 95% CI | p value | OR | 95% CI | ||
| Breed (crossbreed or pedigree) | Chi-squared∗ | 0.29 | 0.728 | 0.43–1.24 | 0.21 | 0.537 | 0.23–1.27 |
| Age | Wilcoxon | 0.26 | 0.12 | ||||
| Sex | Chi-squared∗ | 0.46 | 1.26 | 0.74–2.13 | 0.53 | 1.43 | 0.61–3.4 |
| Number of the household residents who had close contact with the cat under investigation | Wilcoxon | 0.022 ∗ | 0.08 | ||||
| The family member works in healthcare or in veterinary healthcare | Chi-squared∗ | 0.0032 ∗ | 2.29 | 1.33–3.92 | 0.019 ∗ | 2.9 | 1.23–6.95 |
| Hospitalization of an owner in the previous year | Chi-squared∗ | 0.075 | 0.457 | 0.18–0.98 | 0.12 | 0.212 | 0.01–1.03 |
| 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-squared∗ | 0.013 ∗ | 1.56 | 0.92–2.63 | 0.016 ∗ | 3.49 | 1.26–8.76 |
| Number of animals kept in the same household | |||||||
| Dogs | Wilcoxon | 0.0078 ∗ | 0.017 ∗ | ||||
| Cats | Wilcoxon | 0.24 | 0.16 | ||||
| Others | Wilcoxon | 0.76 | 0.87 | ||||
| Treatment of cat under investigation in the previous year | Chi-squared∗ | 0.00056 ∗ | 2.58 | 1.51–4.4 | 0.015 ∗ | 3.01 | 1.28–7.31 |
| Treatment of other pets in the previous year | Chi-squared∗ | 0.65 | 1.17 | 0.69–1.97 | 0.75 | 1.26 | 0.53–2.99 |
MRSA: methicillin-resistant Staphylococcus aureus; p value: probability value; ∗results statistically significant; Chi-squared∗: degrees of freedom is 1.