Outcomes relevant to your review Copy and paste from ‘Types of outcome measures’
	Reported in paper (circle)
Overall mortality	Yes/No
Overall 28‐day mortality (30‐day mortality included)	Yes/No
Number of new occurrences of blood transfusion (e.g. avoidance of transfusion)	Yes/No
Number of bleeding events	Yes/No
Quantity of blood products transfused	Yes/No
Complications probably related to the intervention (e.g. thrombotic episodes (pulmonary embolism, myocardial infarction, disseminated intravascular coagulation), major immunological and allergic reactions (TRALI), cardiopulmonary overload (TACO), infection and sepsis (e.g. transmission of viral infection))	Yes/No
Complications during inpatient stay not specific to the trial intervention (e.g. pneumonia, congestive cardiac failure, respiratory failure, renal failure)	Yes/No
	Yes/No
	Yes/No
Number of days in hospital.	Yes/No
Mean length of stay in intensive care unit (ICU).	Yes/No