Replacement of HA-MRSA by CA-MRSA infections at an academic medical center in the midwestern United States, 2004-5 to 2008

We noted anecdotally that infections designated as health care-associated (HA-) MRSA by epidemiologic criteria seemed to be decreasing in incidence at the University of Chicago Medical Center (UCMC) after 2004. We compared MRSA patients seen at any site of clinical care at UCMC and the isolates that...

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Bibliographic Details
Published in:PloS one 2014-04, Vol.9 (4), p.e92760-e92760
Main Authors: David, Michael Z, Cadilla, Adriana, Boyle-Vavra, Susan, Daum, Robert S
Format: Article
Language:English
Subjects:
Academic Medical Centers
Adult
Biology and life sciences
Child
Chromosomes
Community-Acquired Infections - epidemiology
Community-Acquired Infections - microbiology
Complications and side effects
Consent
Criteria
Cross infection
Delivery of Health Care
Demography
Disease control
Drug resistance
Emergency medical services
Epidemiology
Female
Genotype
Health aspects
Health care
Health care facilities
Hospitals
Humans
Infections
Intensive care units
Laboratories
Male
Medical records
Medicine and Health Sciences
Methicillin-Resistant Staphylococcus aureus - genetics
Methicillin-Resistant Staphylococcus aureus - isolation & purification
Methicillin-Resistant Staphylococcus aureus - physiology
Midwestern United States
Nosocomial infections
Patient outcomes
Patients
Pediatrics
Phenotype
Pneumonia
Risk factors
Staphylococcal Infections - epidemiology
Staphylococcal Infections - microbiology
Staphylococcus aureus
Staphylococcus aureus infections
Staphylococcus infections
Surgery
Trends
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Summary:We noted anecdotally that infections designated as health care-associated (HA-) MRSA by epidemiologic criteria seemed to be decreasing in incidence at the University of Chicago Medical Center (UCMC) after 2004. We compared MRSA patients seen at any site of clinical care at UCMC and the isolates that caused their infections in 2004-5 (n = 545) with those in 2008 (n = 135). The percent of patients with MRSA infections cultured > 2 days after hospital admission decreased from 19.5% in 2004-5 to 7.4% in 2008 (p = 0.001). The percent in 2004-5 compared with 2008 who had a hospitalization (49.1% to 26.7%, p = 0.001) or surgery (43.0% to 14.1%, p
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0092760