Age of Red Cells for Transfusion and Outcomes in Critically Ill Adults
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The age of transfused red cells did not affect 90-day mortality among critically ill adults. In an international, multicenter, randomized, double-blind trial, we assigned critically ill adults to receive either the freshest available, compatible, allogeneic red cells (short-term storage group) or standard-issue (oldest available), compatible, allogeneic red cells (long-term storage group). The primary outcome was 90-day mortality.