Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,181 questions · 1,197 findings · 144 reviews

No studies found 196 · 16.4%GRADE not reported 213 · 17.8%Very low 274 · 22.9%Low 296 · 24.7%Moderate 171 · 14.3%High 47 · 3.9%