Hearing Loss Strongly Tied to Increased Dementia Risk

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Hearing Loss Strongly Tied to Increased Dementia Risk

Dementia prevalence is 61% higher among older people with moderate to severe hearing loss compared to those with normal hearing, new national data show.

Investigators also found that even mild hearing loss was associated with increased dementia risk, although it was not statistically significant, and that hearing aid use was tied to a 32% decrease in dementia prevalence.

“Every 10-decibel increase in hearing loss was associated with 16% greater prevalence of dementia, such that prevalence of dementia in older adults with moderate or greater hearing loss was 61% higher than prevalence in those with normal hearing,” lead investigator Alison Huang, PhD, senior research associate in epidemiology at Johns Hopkins Bloomberg School of Public Health and core faculty in the Cochlear Center for Hearing and Public Health, Baltimore, Maryland, told Medscape Medical News.

The findings were published online January 10 in the Journal of the American Medical Association.

JAMA. Published online January 10, 2023. Research Letter

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