Hearing aids
Intervention1 paper2 findings
- Human trial1
Outcomes
2Cognitive function
upin humans1RR 5.94High certainty
1 study
Cognitive function
upin humans1RR 5.94High certainty
Hearing aids improve cognitive function in humans (RR 5.94 (95% CI, 2.46-14.37)).
Human trialmild cognitive impairment and moderate to severe hearing loss24 monthsn = 703
Hearing aids did not cut dementia conversion in older adults · JAMA neurology · 28 Sep 2026
Dementia
no changein humans1RR 0.59Moderate certainty
1 study
Dementia
no changein humans1RR 0.59Moderate certainty
Hearing aids have no effect on dementia in humans (RR 0.59 (95% CI, 0.25-1.38)).
Human trialmild cognitive impairment and moderate to severe hearing loss24 monthsn = 703
Hearing aids did not cut dementia conversion in older adults · JAMA neurology · 28 Sep 2026
Latest
1Hearing aids did not cut dementia conversion in older adults
Over 24 months, dementia conversion was 3.09% with hearing aids compared with 4.74% with hearing care education, a non-significant difference.Over 24 months, dementia conversion was 3.09% with hearing aids compared with 4.74% with hearing care education, a non-significant difference.