Table 6. Univariate analysis of risk-factor variables from Staphylococcus pseudintermedius isolates from dogs in Australia (n = 555).
Odds ratios define the risk of isolates being classified as methicillin-resistant strains.
| Risk factor | n | %MRSP | OR | P value | 95% CI |
|---|---|---|---|---|---|
| Age in years | |||||
| <2 | 51 | 5.9 | Ref | ||
| 2–10 | 391 | 13.3 | 2.45 | 0.143 | 0.74–8.17 |
| <10 | 113 | 8.8 | 1.56 | 0.518 | 0.41–5.9 |
| Chronic and recurrent disease | |||||
| No | 492 | 12 | Ref | ||
| Yes | 63 | 9.5 | 0.77 | 0.567 | 0.32–1.87 |
| Prior antimicrobial treatment | |||||
| No | 419 | 9.3 | Ref | ||
| Yes | 136 | 19.1 | 2.3 | 0.002 | 1.34–3.95 |
| Sex | |||||
| Male | 247 | 11.3 | Ref | ||
| Female | 308 | 12 | 1.07 | 0.805 | 0.563–1.8 |
| Site of infection | |||||
| Ear | 255 | 6.3 | Ref | ||
| Skin and soft tissue | 138 | 19.6 | 3.63 | <0.000 | 1.88–7.01 |
| Urinary tract | 104 | 5.7 | 0.91 | 0.865 | 0.34–2.4 |
| Surgical site | 42 | 35.7 | 8.3 | <0.000 | 3.7–18.63 |
| Respiratory tract | 16 | 6.2 | 1 | 0.997 | 0.12–8.02 |