Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

93 questions · 97 findings · 7 reviews

No studies found 25 · 25.8%GRADE not reported 16 · 16.5%Very low 21 · 21.6%Low 22 · 22.7%Moderate 11 · 11.3%High 2 · 2.1%

Prophylactic platelet transfusions with high‐dose schedule vs standard‐dose strategies

Mortality from all causes up to 30 days from study entry · People with a haematological disorder

Prophylactic platelet transfusions with high‐dose schedule showed no clear difference in mortality from all causes up to 30 days from study entry compared with standard‐dose schedule (low certainty).

1 finding from 1 review

Thrombopoietin mimetics vs placebo

Proportion of patients receiving platelets · People with chronic bone marrow failure

Thrombopoietin mimetic probably leads to lower proportion of participants receiving a platelet transfusion compared with placebo (moderate certainty).

1 finding from 1 review

Thrombopoietin mimetics vs placebo or usual care

Number of participants with at least 1 bleeding episode · people with haematological disorders undergoing intensive chemotherapy or stem cell transplantation

It is very uncertain whether thrombopoietin mimetics changes number of participants with at least 1 bleeding episode compared with placebo or standard care (very low certainty).

1 finding from 1 review

Intervention not reported

Number of participants with severe or life‐threatening bleeding · people with haematological disorders undergoing intensive chemotherapy or stem cell transplantation

It is very uncertain whether the intervention changes number of participants with severe or life‐threatening bleeding (very low certainty).

1 finding from 1 review