Table 3.
Univariate Analysis of Demographic and Exposure Factors Associated With a Higher Community-Associated Methicillin-Resistant Staphylococcus aureus Colonization Burden
| Mean Colonization Burden by Factor |
Relative Prevalence (95% CI) | |||
|---|---|---|---|---|
| Factor | Present | Absent | P Value | |
| HIV-infected | 0.103 | 0.061 | 1.68 (1.33–2.11) | <.001 |
| African-American race | 0.095 | 0.059 | 1.6 (1.25–2.06) | <.001 |
| Hispanic ethnicity | 0.047 | 0.091 | 0.52 (.37–.73) | <.001 |
| Male | 0.095 | 0.058 | 1.64 (1.27–2.12) | <.001 |
| Temporary housing: current or in the past year | 0.127 | 0.078 | 1.62 (1.14–2.3) | .007 |
| Incarceration exposure: current detainee or release in past 3 mo | 0.12 | 0.08 | 1.51 (.99–2.3) | .059 |
| Illicit drug use: current or former | 0.094 | 0.075 | 1.26 (1.01–1.58) | .045 |
| Age, in decadesa | … | … | 0.87 (.79–.94) | .001 |
| Diabetes | 0.091 | 0.08 | 1.13 (.86–1.49) | .383 |
| Men who have sex with men | 0.108 | 0.093 | 1.16 (.88–1.54) | .3 |
| Chronic hemodialysis | 0.075 | 0.082 | 0.91 (.41–2.05) | .826 |
| Residence in a nursing home or long-term care facility in the past year | 0.12 | 0.081 | 1.49 (.9–2.47) | .118 |
| Immunosuppression unrelated to HIV | 0.069 | 0.084 | 0.82 (.57–1.18) | .29 |
Colonization burden: the number of colonized sites divided by the total number of sites sampled.
Abbreviations: CI, confidence interval; HIV, human immunodeficiency virus.
a Age represents a continuous variable.