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The Impact of Methicillin Resistance in Staphylococcus aureus Bacteremia on Patient Outcomes: Mortality, Length of Stay, and Hospital Charges

Cosgrove, Sara E., Qi, Youlin, Kaye, Keith S., Harbarth, Stephan, Karchmer, Adolf W., Carmeli, Yehuda·2005·Infection Control & Hospital Epidemiology

Abstract

Objective: To evaluate the impact of methicillin resistance in Staphylococcus aureus on mortality, length of hospitalization, and hospital charges. Design: A cohort study of patients admitted to the hospital between July 1, 1997, and June 1, 2000, who had clinically significant S. aureus bloodstream infections. Setting: A 630-bed, urban, tertiary-care teaching hospital in Boston, Massachusetts. Patients: Three hundred forty-eight patients with S. aureus bacteremia were studied; 96 patients had methicillin-resistant S. aureus (MRSA). Patients with methicillin-susceptible S. aureus (MSSA) and MRSA were similar regarding gender, percentage of nosocomial acquisition, length of hospitalization, ICU admission, and surgery before S. aureus bacteremia. They differed regarding age, comorbidities, and illness severity score. Results: Similar numbers of MRSA and MSSA patients died (22.9% vs 19.8%; P = .53). Both the median length of hospitalization after S. aureus bacteremia for patients who survived and the median hospital charges after S. aureus bacteremia were significantly increased in MRSA patients (7 vs 9 days, P = .045; $19,212 vs $26,424, P = .008). After multivariable analysis, compared with MSSA bacteremia, MRSA bacteremia remained associated with increased length of hospitalization (1.29 fold; P = .016) and hospital charges (1.36 fold; P = .017). MRSA bacteremia had a median attributable length of stay of 2 days and a median attributable hospital charge of $6,916. Conclusion: Methicillin resistance in S. aureus bacteremia is associated with significant increases in length of hospitalization and hospital charges.

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Metadata

Authors
Cosgrove, S. E., Qi, Y., Kaye, K. S., Harbarth, S., Karchmer, A. W., & Carmeli, Y.
Venue
Infection Control & Hospital Epidemiology
Published
2005-02
Volume
26
Issue
2
Pages
166-174
ISSN
  • 0899-823X (ISSN-L)
  • 1559-6834
OpenAlex
W2133902131
Cited by
856
References
0
FWCI
35.62
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: The Impact of Methicillin Resistance in Staphylococcus aureus Bacteremia on Patient Outcomes: Mortality, Length of Stay, and Hospital Charges. https://app.cochat.ai/papers/10.1086/502522
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Cosgrove, S. E., Qi, Y., Kaye, K. S., Harbarth, S., Karchmer, A. W., & Carmeli, Y. (2005). The Impact of Methicillin Resistance in Staphylococcus aureus Bacteremia on Patient Outcomes: Mortality, Length of Stay, and Hospital Charges. Infection Control & Hospital Epidemiology. https://doi.org/10.1086/502522

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