Findings

What do systematic reviews say?

8 questions · 8 findings · 4 reviews · Work · Headline outcomes only

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 4 · 50%Low 1 · 12.5%Moderate 3 · 37.5%High 0 · 0%

Effects of instructions vs No special instructions (control)

PAR (dB) at immediate · workers exposed to noise using earplugs

1 finding from 1 review

Hearing protection field attenuation estimation systems and associated training for reducing workers’ exposure to noise 2024 · Cochrane Headline outcomes only
no estimate extracted
1 study · 100 participants
Low

Effects of extensive instructions vs simple instructions

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

1 finding from 1 review

Hearing protection field attenuation estimation systems and associated training for reducing workers’ exposure to noise 2024 · Cochrane Headline outcomes only
no estimate extracted
1 study · 321 participants
Moderate

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

Hearing protection field attenuation estimation systems and associated training for reducing workers’ exposure to noise 2024 · Cochrane Headline outcomes only
RR 1.75 [1.44, 2.11]
1 study · 321 participants
Moderate

Educational intervention vs no intervention

Injury rate (ITS), change immediately after intervention, low injury rate · healthcare workers

1 finding from 1 review

Education and training for preventing sharps injuries and splash exposures in healthcare workers 2021 · Cochrane Headline outcomes only
no estimate extracted
2104 participants
Very low

Educational intervention vs no intervention

Injury rate (ITS), change immediately after intervention, high injury rate · healthcare workers

1 finding from 1 review

Education and training for preventing sharps injuries and splash exposures in healthcare workers 2021 · Cochrane Headline outcomes only
no estimate extracted
255 participants
Very low

Intervention not reported

Immediate change in level in year 2000 (noise level at work as PEL dose in dB(A); range 0 to 6400, log scale) · workers with noise exposure

1 finding from 1 review

Interventions to prevent occupational noise‐induced hearing loss 2017 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
Very low

Earplugs with instruction vs without instruction (noise exposure)

Mean noise attenuation over 0.5, 1, 2, 3, 4, 6, 8 kHz (dB) Immediate · workers exposed to noise

1 finding from 1 review

Interventions to prevent occupational noise‐induced hearing loss 2017 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 140 participants
Moderate

(ITS) Safe blood collection systems vs regular systems

Needlestick injuries · preventing percutaneous exposure injuries caused by needles in healthcare personnel

It is very uncertain whether (RCT) Safe blood collection systems changes needlestick injuries immediate compared with regular systems (very low certainty).

1 finding from 1 review

Devices for preventing percutaneous exposure injuries caused by needles in healthcare personnel 2017 · Cochrane Headline outcomes only
RR 0.2 [0.01, 4.15]
1 study · 550 participants
Very low