Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

109 questions · 109 findings · 14 reviews · Headline outcomes only

No studies found 50 · 45.9%GRADE not reported 7 · 6.4%Very low 24 · 22%Low 21 · 19.3%Moderate 7 · 6.4%High 0 · 0%

Intervention not reported

Adverse effects Number of outstanding complaints · adults with hearing loss who use hearing aids

It is very uncertain whether the intervention changes adverse effects Number of outstanding complaints (very low certainty).

1 finding from 1 review

Intervention not reported

Self‐reported hearing handicap Validated self‐report measure HHIE scale from: 0 to 100 (Ventry 1982) · adults with hearing loss who use hearing aids
1 finding from 1 review

Intervention not reported

Communication Validated self‐report measure: verbal subscale of the CPHI scale from 0 to 5 (Demorest 1987) · adults with hearing loss who use hearing aids
1 finding from 1 review

Intervention not reported

Adherence Number of people fitted with hearing aid/number of people who use the aids · adults with hearing loss who use hearing aids

The intervention showed no clear difference in adherence Number of people fitted with hearing aid/number of people… (low certainty).

1 finding from 1 review

Intervention not reported

Daily hours of hearing aid use Self‐reported or data‐logged average hours of use per day. Scale from: 0 to 12 hours · adults with hearing loss who use hearing aids
1 finding from 1 review