Population-Based Incidence and Characteristics of Community-Onset Staphylococcus aureus Infections with Bacteremia in 4 Metropolitan Connecticut Areas, 1998

This study retrospectively analyzed the magnitude and epidemiology of community-onset Staphylococcus aureus (COSA) infections and methicillin-resistant S. aureus (MRSA) infections in 4 Connecticut metropolitan areas (population, 1.1 million). The study looked at hospital medical records of persons a...

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Bibliographic Details
Published in:The Journal of infectious diseases 2001-10, Vol.184 (8), p.1029-1034
Main Authors: Morin, Craig A., Hadler, James L.
Format: Article
Language:English
Subjects:
Action of physical and chemical agents on bacteria
Adolescent
Adult
Age Factors
Aged
Bacteremia
Bacteremia - epidemiology
Bacterial diseases
Bacteriology
Biological and medical sciences
Communities
Community-Acquired Infections - epidemiology
Connecticut - epidemiology
Epidemiology
Ethnic Groups
Female
Fundamental and applied biological sciences. Psychology
Hospitals
Human bacterial diseases
Humans
Incidence
Infections
Infectious diseases
Major Article
Male
Medical conditions
Medical sciences
Methicillin Resistance
Metropolitan areas
Microbiology
Middle Aged
Population Density
Retrospective Studies
Rural Population - statistics & numerical data
Seasons
Staphylococcal Infections - epidemiology
Staphylococcal infections, streptococcal infections, pneumococcal infections
Staphylococcus aureus
Staphylococcus aureus - isolation & purification
Suburban Population - statistics & numerical data
Surveillance
Urban Population - statistics & numerical data
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Summary:This study retrospectively analyzed the magnitude and epidemiology of community-onset Staphylococcus aureus (COSA) infections and methicillin-resistant S. aureus (MRSA) infections in 4 Connecticut metropolitan areas (population, 1.1 million). The study looked at hospital medical records of persons admitted with S. aureus bacteremia in 1998. COSA was categorized as “health care associated,” “with underlying medical condition,” or “no underlying medical condition.” Overall, 48% of S. aureus bacteremic infections were COSA (incidence, 17 cases/100,000 persons). Incidence increased with age and higher population density. In all, 62% of infections were health care associated; 85% of the remaining cases had underlying medical conditions. MRSA accounted for 16% of health care–associated cases and cases with underlying conditions but no cases with no underlying conditions. COSA bacteremic infections are as common as those due to pneumococci. MRSA is a well-established cause of COSA among persons at high medical risk for S. aureus infection. Additional study to understand community-onset MRSA acquisition is needed
ISSN:0022-1899
1537-6613
DOI:10.1086/323459