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Volume 13, Number 8—August 2007


Risk Factors for Colonization with Extended-Spectrum β-Lactamase–producing Bacteria and Intensive Care Unit Admission

Anthony D. Harris*†Comments to Author , Jessina C. McGregor*, Judith A. Johnson*†, Sandra M. Strauss*, Anita C. Moore*, Harold C. Standiford‡, Joan N. Hebden‡, and J. Glenn Morris*
Author affiliations: *University of Maryland, Baltimore, Maryland, USA; †Veterans Affairs Maryland Health Care System, Baltimore, Maryland, USA; ‡University of Maryland Medical Center, Baltimore, Maryland, USA;

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Table 2

Independent predictors of ESBL-producing bacteria colonization in multivariable logistic regression model*

PredictorOR95% CI
Age >601.791.24, 2.60
CDS-ID1.151.04, 1.27
Vancomycin†2.111.34, 3.31
Piperacillin-tazobactam†2.051.36, 3.10

*ESBL, extended-spectrum β-lactamase; OR, odds ratio; CI, confidence interval; CDS-ID, infectious disease–specific Chronic Disease Score.
†Antimicrobial drug exposures were assessed during the period between hospital admission and intensive care unit admission.

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