Transfusion outside of protocol | Transfusion according to protocol withheld | |
---|---|---|
Mild | Not applicable | A transfusion took place, but more than 24 hours after the breach of the relevant transfusion threshold |
Moderate | Patient transfused, but patient did breach the relevant threshold for transfusion at some point postoperatively (before or after the transfusion outside of protocol) | Patient was not transfused following a breach, but the patient had previously had at least one post-randomization transfusion |
Severe | Patient transfused, and patient did not breach the relevant threshold for transfusion at any point postoperatively | Patient was not transfused following a breach, and patient had no post-randomization transfusions |