Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

606 questions · 682 findings · 77 reviews

No studies found 99 · 14.5%GRADE not reported 215 · 31.5%Very low 197 · 28.9%Low 102 · 15%Moderate 48 · 7%High 21 · 3.1%

Effects of extensive instructions vs simple instructions

PAR pass rate (%) ‐ Fit testing of foam earplugs (immediate) · workers exposed to noise using HPDs

Effects of extensive instructions probably leads to higher PAR pass rate (%) ‐ Fit testing of foam earplugs (immediate) compared with simple instructions (moderate certainty).

1 finding from 1 review