Table 3 Multivariate analysis of factors associated with non-multidrug resistant methicillin-resistant Staphylococcus aureus (nmMRSA) infections, Auckland District Health Board, New Zealand, 2001-2011
Characteristic | OR of nmMRSA vs. MSSA infection (95% CI) |
|---|---|
Sex | |
Male | Reference |
Female | 0.96 (0.86–1.06) |
Type of infection | |
Non-invasive | Reference |
Invasive | 0.64 (0.55–0.74) |
Age band (years) | |
15 to 49 | Reference |
Under 5 | 0.98 (0.85–1.14) |
5 to 14 | 1.12 (0.97–1.29) |
50 to 74 | 1.09 (0.92–1.08) |
Over 75 | 1.77 (1.44–2.17) |
Ethnicity | |
European | Reference |
Māori | 1.48 (1.26–1.75) |
Pacific peoples | 2.41 (2.09–2.78) |
Other | 0.99 (0.79–1.25) |
NZDep score | |
1–3 (low) | Reference |
4–7 (medium) | 0.98 (0.84–1.15) |
8–10 (high) | 1.10 (1.14–1.29) |
Place of acquisition | |
CO | Reference |
HCA-CO | 1.08 (0.96–1.21) |
HCA-HO | 1.37 (1.15–1.62) |