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

Abbreviation: months, mo.; odds ratio, OR; confidence interval, CI.aNon-white or Hispanic includes non-Hispanic black, Hispanic/Latino, Asian, American Indian, or other race/ethnicities.bThe 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.cEntered into the model as a 3-level categorical variable.