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A risk-scoring system for predicting methicillin resistance in community-onset staphylococcus aureus bacteremia in Korea
Cited 1 time in
Web of Science
Cited 1 time in Scopus
- Authors
- Issue Date
- 2018-06
- Publisher
- Mary Ann Liebert Inc.
- Citation
- Microbial Drug Resistance, Vol.24 No.5, pp.556-562
- Abstract
- Aims: We aimed to develop a simple scoring system to predict risk for methicillin resistance in community-onset Staphylococcus aureus bacteremia (CO-SAB) by identifying the clinical and epidemiological risk factors for community-onset methicillin-resistant S. aureus (MRSA). Methods: We retrospectively analyzed data from three multicenter cohort studies in Korea in which patient information was prospectively collected and risk factors for methicillin resistance in CO-SAB were identified. We then developed and validated a risk-scoring system. Results: To analyze the 1,802 cases of CO-SAB, we included the four most powerful predictors of methicillin resistance that we identified in the scoring system: underlying hematologic disease (-1 point), endovascular infection as the primary site of infection (-1 point), history of hospitalization or surgery in 1 year (+0.5 points), and previous isolation of MRSA in 6 months (+1.5 points). With this scoring system, cases were classified into low (less than -0.5), intermediate (-0.5-1.5), and high (1.5) risk groups. The proportions of MRSA cases in each group were 24.7% (22/89), 39.0% (607/1,557), and 78.8% (123/156), respectively, and 16.7% (1/6), 33.8% (112/331), and 76.9% (10/13) in a validation set. Conclusions: This risk-scoring system for methicillin resistance in CO-SAB may help physicians select appropriate empirical antibiotics more quickly.
- ISSN
- 1076-6294
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