Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,355 questions · 2,459 findings · 279 reviews

No studies found 556 · 22.6%GRADE not reported 490 · 19.9%Very low 593 · 24.1%Low 479 · 19.5%Moderate 243 · 9.9%High 98 · 4%