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Data on Blood Research Reported by Researchers at Chinese University of Hong Kong

Published in Blood Weekly, April 5th, 2012

2012 APR 5 -- According to the authors of recent research published in the journal Anesthesiology, "Observational studies on transfusion in trauma comparing high versus low plasma: erythrocyte ratio were prone to survivor bias because plasma administration typically started later than erythrocytes. Therefore, early deaths were categorized in the low plasma: erythrocyte group, whereas early survivors had a higher chance of receiving a higher ratio."

"When early deaths were excluded, however, a bias against higher ratio can be created. Survivor bias could be reduced by performing before-and-after studies or treating the plasma: erythrocyte ratio as a...

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