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Updated: Mar 19, 2026

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA
Published on: February 9, 2011
Diagnostic accuracy of methicillin-resistant Staphylococcus aureus nasal colonization to predict
Craig G Gunderson1, Jurgen L Holleck1, John J Chang1
1Department of Internal Medicine, Yale University School of Medicine, New Haven, CT; Department of Medicine, Veterans Affairs Connecticut Healthcare System, West Haven, CT.
Abstract:
Nasal methicillin-resistant Staphylococcus aureus (MRSA) testing at admission to the hospital was found to have a positive likelihood ratio of 8.5 and a negative likelihood ratio of 0.41 for predicting MRSA soft tissue infections. The clinical utility of this test depends on the prevalence of MRSA infection. In high prevalence populations, nasal MRSA is useful to rule in MRSA infections. In low prevalence populations it may be useful to rule out infections.
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