Primary Composite Outcome Corrected in a Trial of Transfusion Strategy

To the Editor We wish to report corrections to our study of a restrictive vs liberal blood transfusion strategy on major cardiovascular events among patients with acute myocardial infarction and anemia. During secondary analyses of the trial results related to heart failure, it became apparent that the original analysis of the primary composite outcome had mistakenly included heart failure events as a component of the primary outcome (although heart failure events were adjudicated, they were not...