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Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2010

Theses and Dissertations

Antimicrobial resistance

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Strategies For Deriving A Single Measure Of The Overall Burden Of Antimicrobial Resistance In Hospitals, Alessandro Orlando May 2010

Strategies For Deriving A Single Measure Of The Overall Burden Of Antimicrobial Resistance In Hospitals, Alessandro Orlando

Theses and Dissertations

Background: Antimicrobial-resistant infections result in hospital stays costing between $18,000 and $29,000. As of 2009, Centers for Medicare and Medicaid Services no longer upgrade payments for hospital-acquired infections. Hospital epidemiologists monitor and document rates of individual resistant microbes in antibiogram reports. Overall summary measures capturing resistance within a hospital may be useful. Objectives: We applied four techniques (L1- and L2-principal component analysis (PCA), desirability functions, and simple summary) to create summary measures of resistance and described the four summary measures with respect to reliability, proportion of variance explained, and clinical utility. Methods: We requested antibiograms from hospitals participating in the …


When Volunteering Doesn’T Cut It: A Critical Examination Of Carbapenem-Resistant Enterobacteriaceae Surveillance And Trends In The United States., Erica E. Smith May 2010

When Volunteering Doesn’T Cut It: A Critical Examination Of Carbapenem-Resistant Enterobacteriaceae Surveillance And Trends In The United States., Erica E. Smith

Theses and Dissertations

Background. Carbapenem-resistant Enterobacteriaceae, including Escherichia coli and Klebsiella pneumoniae, are newly emerging pathogens of public health importance. Currently no nationally representative or mandatory surveillance or reporting system exists to examine trends of these important pathogens. Objective. The purpose of the current study was to estimate trends in overall microbial burden and carbapenem resistance in E. coli and K. pneumoniae and to understand the extent to which hospitals which report to voluntary surveillance systems represent all hospitals in the United States. Design. We conducted a descriptive study to compare the hospitals participating in voluntary reporting systems of the University HealthSystem Consortium …