Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,479 questions · 1,537 findings · 159 reviews

No studies found 364 · 23.7%GRADE not reported 125 · 8.1%Very low 455 · 29.6%Low 374 · 24.3%Moderate 193 · 12.6%High 26 · 1.7%