What do systematic reviews say?

Number of participants with any bleeding · People with a haematological disorder

Thromboembolism · People with a haematological disorder

Mortality (all‐cause) ‐ not reported · People with a haematological disorder

Number of platelet transfusions per participant up to 30 days from study entry · People with a haematological disorder

Adverse events associated with transfusion · People with a haematological disorder

Adverse events of antifibrinolytic agents · People with a haematological disorder

Quality of life ‐ not reported · People with a haematological disorder