Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

110 questions · 117 findings · 9 reviews

No studies found 13 · 11.1%GRADE not reported 7 · 6%Very low 21 · 17.9%Low 41 · 35%Moderate 24 · 20.5%High 11 · 9.4%

Activity interventions vs control

Body‐mass index (BMI) · children aged 12 to 18 years
3 findings from 1 review