Estimates of association of methicillin resistant <i>Staphylococcus aureus</i> (MRSA) nasal carriage identified by polymerase chain reaction with medical and household exposures from a multivariable logistic model conditioned on age and gender.

<p>Abbreviation: months, mo.; odds ratio, OR; confidence interval, CI.</p>a<p>Non-white or Hispanic includes non-Hispanic black, Hispanic/Latino, Asian, American Indian, or other race/ethnicities.</p>b<p>The gym visitation/sports participation variable reflects the 2 weeks prior to the hospital admission, even though 2 cases and 1 control were screened for MRSA 9 or more days before their current hospital admission.</p>c<p>Entered into the model as a 3-level categorical variable.</p