Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,340 questions · 1,512 findings · 205 reviews

No studies found 317 · 21%GRADE not reported 358 · 23.7%Very low 356 · 23.5%Low 271 · 17.9%Moderate 173 · 11.4%High 37 · 2.4%