Hospital blood bank information systems accurately reflect patient transfusion: results of a validation study.

Background: Hospital transfusion laboratories collect information regarding blood transfusion and some registries gather clinical outcomes data without transfusion information, providing an opportunity to integrate these two sources to explore effects of transfusion on clinical outcomes. However, the use of laboratory information system (LIS) data for this purpose has not been validated previously.

Study Design And Methods: Validation of LIS data against individual patient records was undertaken at two major centers.