Cited by 245Antimicrobial Resistance in StaphylococcusAntibiotic Use and ResistanceInfection Control in Healthcare

Population-Based Community Prevalence of Methicillin-Resistant Staphylococcus aureus in the Urban Poor of San Francisco

Charlebois, Edwin D., Bangsberg, David R., Moss, Nicholas J., Moore, Matthew R., Moss, Andrew R., Chambers, Henry F., Perdreau-Remington, Françoise·2002·Clinical Infectious Diseases

Abstract

The study objective was to determine the prevalence and risk factors for nasal colonization with Staphylococcus aureus and methicillin resistance among the urban poor and to compare antibiotic resistance and genetic similarity to concurrently collected clinical isolates of methicillin-resistant S. aureus (MRSA). A population-based community sample of 833 homeless and marginally housed adults were cultured and compared with 363 clinical isolates of MRSA; 22.8% of the urban poor were colonized with S. aureus. Of S. aureus isolates, 12.0% were methicillin resistant. Overall prevalence of MRSA was 2.8%. Significant multivariate risk factors for MRSA were injection drug use (odds ratio [OR], 9.7), prior endocarditis (OR, 4.1), and prior hospitalization within 1 year (OR, 2.4). Resistance to antimicrobials other than β-lactams was uncommon. Only 2 individuals (0.24%) with MRSA had no known risk factors. A total of 22 of 23 community MRSA genotypically matched clinical MRSA isolates, with 15 of 23 isolates identical to MRSA clones endemic among hospitalized patients.

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Crossref · 10.1086/338069

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Authors
Charlebois, E. D., Bangsberg, D. R., Moss, N. J., Moore, M. R., Moss, A. R., Chambers, H. F., & Perdreau-Remington, F.
Affiliations
  • San Francisco General Hospital (US)
  • University of California, San Francisco (US)
  • Department of Medicine, Epidemiology and Prevention Interventions Center, Division of Infectious Diseases, San Francisco General Hospital 1   , San Francisco
Venue
Clinical Infectious Diseases
Published
2002-02-01
Volume
34
Issue
4
Pages
425-433
ISSN
  • 1058-4838 (ISSN-L)
  • 1537-6591
OpenAlex
W2098172533
Cited by
245
References
37
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 1 · 2022: 5 · 2021: 4 · 2020: 5 · 2019: 7 · 2018: 2 · 2017: 3 · 2016: 3 · 2015: 10 · 2014: 8 · 2013: 5 · 2012: 7
FWCI
16.02
Type
journal article
Language
en
Open access
closed
Locations
  • Clinical Infectious Diseases (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r03ai043959-02)
  • National Institute of Mental Health (R01MH054907, R01 MH 54907)
  • National Institute of Allergy and Infectious Diseases (R01AI046610, AI43959, AI 46610)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Antimicrobial Resistance in Staphylococcus
  • Life Sciences › Immunology and Microbiology › Applied Microbiology and Biotechnology › Antibiotic Use and Resistance
  • Health Sciences › Medicine › Infectious Diseases › Infection Control in Healthcare
Keywords
methicillin-resistant Staphylococcus aureus, nasal carriage, MRSA prevalence, urban poverty, homelessness, intravenous drug use, endocarditis, prior hospitalization, antibiotic resistance, MRSA genotyping, community-acquired MRSA, San Francisco
MeSH terms
Adolescent, Adult, Aged, Anti-Bacterial Agents, Female, Genotype, Humans, Male, Microbial Sensitivity Tests, Middle Aged, Risk Factors, San Francisco, Staphylococcal Infections, Staphylococcus aureus, Urban Health, Urban Population, Substance Abuse, Intravenous, Prevalence, Methicillin Resistance

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