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Case-control analysis of endemic Serratia marcescens bacteremia in a neonatal intensive care unit
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- Published on: 22 March 2016
- Published on: 22 March 2016Matching analysis and case-control selectionShow More
Dear Editor,
I read with interest the paper by Bizzarro et al. In their case- control study, for each case with Serratia bacteraemia they have selected two uninfected controls matched for birth weight and date of birth. The advantages of individually matching cases and controls on potential confounding factors is that the sample size required for the study to have adequate power is much smaller than if there was no...
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