Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

374 questions · 393 findings · 47 reviews · Headline outcomes only

No studies found 73 · 18.6%GRADE not reported 16 · 4.1%Very low 164 · 41.7%Low 85 · 21.6%Moderate 36 · 9.2%High 19 · 4.8%

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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Environmental interventions vs no intervention

Adverse events · children (aged 0–6 years)

The review found no eligible studies for this question.

2 findings from 1 review

Environmental interventions vs no intervention

Blood lead levels (continuous)Blood lead level at end of duration Scale: 0–30 · children (aged 0–6 years)
2 findings from 1 review