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Table 1 Exclusion criteria for study cohort

From: A retrospective observational analysis of red blood cell transfusion practices in stable, non-bleeding adult patients admitted to nine medical-surgical intensive care units

Exclusion criteria Definition(s)
Not an adult Age less than 18 years at time of ICU admission
Active blood loss prior to transfusion Decrease in Hgb of 30 g/L 12 h before the index transfusion
3 units (900 mL) of RBC 12 h before the index transfusion
One or more transfusions 12 h after the index transfusion
Other indicators of active blood loss
Anemia Primary or secondary diagnosis of anemia
Pregnancy Pregnant state during in-hospital stay
Brain death or imminent death Indication of clinical brain death in ICU or death within 24 h of ICU admission
Acute myocardial infarction (AMI) Primary or secondary diagnosis of AMI
Neurocritical illness Critically ill patients with neurological injury or condition of the brain requiring intensive care treatment (e.g., traumatic brain injury, intracerebral, or subarachnoid hemorrhage)
ICU admission after routine cardiac surgery ICU admission of post-operative cardiac patients (e.g., coronary artery bypass grafting)