Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,192 questions · 1,243 findings · 151 reviews

No studies found 252 · 20.3%GRADE not reported 180 · 14.5%Very low 291 · 23.4%Low 282 · 22.7%Moderate 174 · 14%High 64 · 5.1%