Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,486 questions · 2,727 findings · 268 reviews

No studies found 600 · 22%GRADE not reported 229 · 8.4%Very low 789 · 28.9%Low 707 · 25.9%Moderate 314 · 11.5%High 88 · 3.2%