Table 4.
Multivariate Analysis of Nasal Methicillin-Resistant Staphylococcus aureus Colonization Among HIV-Infected and HIV-Negative Outpatients
| Risk Factor for MRSA Colonizationa,b | OR | 95% CI | P Value |
| Incarceration history or current residence in alternative housing | 2.3 | 1.09–4.72 | .028 |
| Hispanic ethnicity | 0.3 | .11–.98 | .045 |
| Residence in a high-risk zip codec | 1.6 | .92–2.96 | .097 |
| HIV status | 2 | .78–5.38 | .146 |
Abbreviations: CI, confidence interval; HIV, human immunodeficiency virus; MRSA, methicillin-resistant Staphylococcus aureus; OR, odds ratio.
a
Hosmer-Lemeshow goodness-of-fit test (P = .98).
b
Initial variables included in the model were race, ethnicity, sex, HIV status, residence in a high-risk zip code, incarceration history or current residence in alternative housing, and prior skin and soft tissue or MRSA infection.
c
High-risk zip code was defined as a zip code with high levels of individuals with a history of incarceration [17].