Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

288 questions · 308 findings · 38 reviews · Headline outcomes only

No studies found 78 · 25.3%GRADE not reported 12 · 3.9%Very low 91 · 29.5%Low 70 · 22.7%Moderate 51 · 16.6%High 6 · 1.9%

Educational intervention vs no educational intervention

Uncorrected visual acuity deficit due to refractive error · school‐age children and adolescents

The review found no eligible studies for this question.

2 findings from 1 review

Educational intervention vs control

N deemed adherent (≥4 hours/night) · adults with obstructive sleep apnoea

It is very uncertain whether educational intervention changes 1.3 N deemed adherent (≥ four hours/night) compared with control (very low certainty).

1 finding from 1 review

Educational intervention vs no intervention

Needle stick injuries · healthcare workers

Educational intervention showed no clear difference in needle stick injuries, questionnaires, 6 mo (RCT) compared with no intervention (low certainty).

4 findings from 1 review
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Community health educational intervention for family members and mothers and for mothers only (subgroup) vs control

Neonatal mortality · developing countries

Community health educational intervention for family members and… may leads to lower neonatal mortality ‐ Intervention given to mothers and family members compared with control (low certainty).

1 finding from 1 review