RETRACTED: Preventing dementia through correcting hearing: huge progress but more to do

Abstract

Worldwide hearing loss is a major modifiable risk factor for dementia, with the largest effect in the population.1 A systematic review published in February, 2023, included 25 observational studies and six trials on the association of correcting hearing loss with hearing aids or cochlear implants and cognitive decline or dementia.2 The review included a meta-analysis of eight cohort studies with 126 903 participants and a follow-up of 2–25 years, and found that people with hearing loss who used hearing aids had an 19% lower risk of cognitive decline and a 17% lower risk of dementia, compared with those with uncorrected hearing loss.

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