Major articlePrevalence of methicillin-resistant Staphylococcus aureus and Acinetobacter baumannii in a long-term acute care facility
Section snippets
Study population and data collection
This study was approved by the University of Maryland Baltimore's Institutional Review Board. On December 20, 2005, we completed a point prevalence study of a 180-bed, university-affiliated LTAC facility in Baltimore as part of an ongoing quality improvement and infection control initiative within the University of Maryland Medical System. During the study period, the facility did not use active surveillance for any organism. Patients with positive clinical cultures for MRSA,
Results
There were 147 patients in the facility on the study date. Characteristics of the study population are given in Table 1. The mean age was 52 years, and 61% of the population was male. The median length of stay was 91 days, and the median duration from the date of admission to the study date was 33 days. Diabetes mellitus, heart failure, and renal disease were the most prevalent comorbid conditions, at 25%, 20%, and 19%, respectively. Some 55% of the patients had been admitted to the affiliated
Discussion
Our data suggest a high prevalence of MRSA and A baumannii during a single-day point-prevalence study at an LTAC. The prevalence of MRSA far exceeded that in patients admitted to the general medical and surgical wards, medical and surgical intensive care units, and correctional health unit of the affiliated university hospital (7%, 6%, and 13%, respectively).2, 3, 6 The proportion of A baumannii isolates resistant to commonly used antibiotics was low, notwithstanding several recent reports of
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These data were presented in part at the 47th Interscience Conference on Antimicrobial Agents and Chemotherapy, Chicago, IL.
This work was supported by National Institutes of Health grants 1K12RR02350-01 (to J.P.F.), P60 AG12583 (to R.R.M), and K23 AI01752-01A1 and R01 AI60859-01A1 (to A.D.H.) and US Department of Veterans Affairs grants RCD-02-026-2 and IIR-05-123-1 (to E.N.P.).