Kaplan-Meier estimates (and 95% confidence limits) of the probability of remaining uninfected with CRE, 30 day follow up.

<p>Kaplan-Meier estimates (and 95% confidence limits) of the probability of remaining uninfected with CRE, 30 day follow up.</p

Predictors of CRE infection within 30 days of intensive care unit admission.

<p>Predictors of CRE infection within 30 days of intensive care unit admission.</p

Predictors of all-cause mortality within 90 days of intensive care unit admission.

<p>Predictors of all-cause mortality within 90 days of intensive care unit admission.</p

Baseline characteristics of intensive care unit study population.

<p>Baseline characteristics of intensive care unit study population.</p

Distribution of <i>spa</i> types of 145 clinical infection isolates among case households.

<p>Distribution of <i>spa</i> types of 145 clinical infection isolates among infected index cases, colonized index cases, case households with a colonized non-index household member, and environmentally contaminated case households.</p

Environmental contamination with a colonizing or clinical infection strain and intra-household transmission by case-control status.

<p>Abbreviations: aOR, adjusted odds ratio; CI, confidence interval.</p><p>a. Logistic regression was used to calculate adjusted OR’s and 95% CI’s, controlling for household size.</p

Bivariate and multivariate analyses of risk factors for <i>S. aureus</i> transmission within households.

<p>Abbreviations: aOR, adjusted odds ratio; CI, confidence interval; HIV, human immunodeficiency virus; IDU, intravenous drug use; MSM, men who have sex with men; STD, sexually transmitted disease.</p><p>a. Multiple logistic regression was used for analyses, controlling for household size and case-control status.</p><p>b. All variables significant at <i>P</i><.20 in bivariate analyses were considered for inclusion in the final multiple logistic regression model to calculate adjusted OR’s and 95% CI’s.</p><p>c. Although <i>P</i><.20, not included in the final model because of high correlation with household size.</p

Bivariate analyses of household-level sociodemographics and risk factors by case-control status.

<p>Abbreviations: aOR, adjusted odds ratio; CI, confidence interval; HIV, human immunodeficiency virus; IDU, intravenous drug use; MSM, men who have sex with men; STD, sexually transmitted disease.</p><p>a. Logistic regression was used to calculate adjusted OR’s and 95% CI’s, controlling for household size.</p

<i>S. aureus</i> colonization and environmental contamination by case-control status.

<p>Abbreviations: aOR, adjusted odds ratio; CI, confidence interval.</p><p>a. Logistic regression was used to calculate adjusted OR’s and 95% CI’s, controlling for household size.</p

Flow chart enrollment of cases and controls.

<p>Flow chart enrollment of cases and controls.</p