Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

39 questions · 39 findings · 7 reviews · Haematology

No studies found 11 · 28.2%GRADE not reported 1 · 2.6%Very low 8 · 20.5%Low 17 · 43.6%Moderate 2 · 5.1%High 0 · 0%

Summary of findings table ‐ Convalescent plasma vs placebo or usual care

Grades 3 and 4 adverse events · individuals with moderate to severe disease

Summary of findings table ‐ Convalescent plasma showed no clear difference in grades 3 and 4 adverse events compared with placebo or standard care alone (low certainty).

1 finding from 1 review