Community-acquired methicillin-resistant Staphylococcus aureus: A meta-analysis of prevalence and risk factors

Cassandra D. Salgado, Barry M. Farr, David P. Calfee

Research output: Contribution to journalArticlepeer-review

726 Scopus citations

Abstract

Reports suggest that carriage of methicillin-resistant Staphylococcus aureus (MRSA) among persons without health care-associated risks has increased. A meta-analysis of studies reporting the prevalence of community-acquired MRSA (CA-MRSA) among MRSA isolates from hospitalized patients or the prevalence of MRSA colonization among community members was conducted. The CA-MRSA prevalence among hospital MRSA was 30.2% in 27 retrospective studies and 37.3% in 5 prospective studies; 85% of all patients with CA-MRSA had ≥1 health care-associated risk. The pooled MRSA colonization rate among community members was 1.3% (95% confidence interval [CI], 1.04%-1.53%), but there was significant heterogeneity among study populations. Community members from whom samples were obtained in health care facilities were more likely to be carrying MRSA than were community members from whom samples were obtained outside of the health care setting (relative risk, 2.35; 95% CI, 1.56-3.53). Among studies that excluded persons with health care contacts, the MRSA prevalence was 0.2%. Moreover, most persons with CA-MRSA had ≥1 health care-associated risk, which suggests that the prevalence of MRSA among persons without risks remains low (≤0.24%). Effective control of dissemination of MRSA throughout the community likely will require effective control of nosocomial MRSA transmission.

Original languageEnglish
Pages (from-to)131-139
Number of pages9
JournalClinical Infectious Diseases
Volume36
Issue number2
DOIs
StatePublished - 15 Jan 2003
Externally publishedYes

Fingerprint

Dive into the research topics of 'Community-acquired methicillin-resistant Staphylococcus aureus: A meta-analysis of prevalence and risk factors'. Together they form a unique fingerprint.

Cite this