Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

309 questions · 329 findings · 40 reviews

No studies found 82 · 24.9%GRADE not reported 24 · 7.3%Very low 91 · 27.7%Low 75 · 22.8%Moderate 51 · 15.5%High 6 · 1.8%

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 with information and practical components (theoretical oral health education plus practical skills training) for nursing staff and/or residents vs (Optimised) usual care

Adverse effects of the interventions · Nursing home residents (mean age 78.3 to 86.0 years; more than 66% women; 62.1% to 87.3% with dental prostheses)

The review found no eligible studies for this question.

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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