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Meta-Analysis
. 2001 Sep 3;175(5):264-7.
doi: 10.5694/j.1326-5377.2001.tb143562.x.

Risk of death from methicillin-resistant Staphylococcus aureus bacteraemia: a meta-analysis

M Whitby  1 , M L McLaws, G Berry
Affiliations
Meta-Analysis

Risk of death from methicillin-resistant Staphylococcus aureus bacteraemia: a meta-analysis

M Whitby et al. Med J Aust. .

Abstract

Objective: To estimate the risk of death from healthcare-associated (nosocomial) bacteraemia caused by methicillin-resistant Staphylococcus aureus (MRSA), and compare it with that of nosocomial bacteraemia caused by methicillin-sensitive S. aureus (MSSA), by meta-analysis of selected studies.

Data sources: Medline, EMBASE, Current Contents and Cochrane Library were searched for the period January 1978 (or earliest date of the database, if later than 1978) to December 2000.

Study selection: Studies which compared mortality of nosocomial MRSA and MSSA bacteraemia.

Data synthesis: Nine studies were analysed. All but one found an increased relative risk (RR) of death from MRSA bacteraemia, with RR ranging from 0.89 to 4.94. Meta-analysis showed that patients with MRSA bacteraemia have an RR of death, compared with patients with MSSA bacteraemia, of 2.12 (95% CI, 1.76-2.57) using the fixed-effect method, and 2.03 (95% CI, 1.55-2.65) using the random-effect method.

Conclusion: MRSA bacteraemia is associated with a real increase in risk of death, further justifying ongoing MRSA surveillance and control in healthcare facilities.

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