Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

9 questions · 9 findings · 2 reviews · Haematology

No studies found 3 · 33.3%GRADE not reported 0 · 0%Very low 1 · 11.1%Low 5 · 55.6%Moderate 0 · 0%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