Hearing Loss Among Older Adults: Epidemiology, Disparities, and Gaps in Research.
Level 5 - mechanism / opinion, no new human data
Narrative review of epidemiology, clinical outcomes, and policy without systematic search or meta-analysis.
PubMed 41160749 · doi:10.1146/annurev-publhealth-081524-110330
What was done
This narrative review summarizes evidence regarding the epidemiology of age-related hearing loss, disparities in hearing aid ownership due to cost and access barriers, observational links to dementia and functional decline, and recent randomized controlled trials examining hearing care interventions.
What was found
The abstract provides no numerical data, sample sizes, or effect estimates. It qualitatively describes hearing loss prevalence and severity increasing with age, hearing aid uptake lagging behind prevalence, associations with dementia and functional/social decline, and evidence from randomized controlled trials suggesting hearing care modifies poor health outcomes in some older adults.
Why it matters
It highlights hearing loss as a potentially modifiable factor in age-related cognitive and functional decline and outlines persistent policy and accessibility gaps in hearing healthcare.
Limits
As a narrative review, it lacks a systematic search methodology or quantitative synthesis. The abstract provides no primary data, effect sizes, or details regarding the specific trial populations where benefits were observed.