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Home » IANS » Hearing, visual impairments linked to elevated dementia risk

Hearing, visual impairments linked to elevated dementia risk

By IANS
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Washington, July 9 (IANS) Researchers have found that older adults with both hearing and visual impairments–or dual sensory impairment–had a significantly higher risk for dementia.

The study, published in the journal Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring, said that hearing and vision loss are independently associated with dementia, but the impact of dual sensory impairment on dementia risk is not well understood.

“Evaluation of vision and hearing in older adults may predict who will develop dementia and Alzheimer’s,” said study lead author Phillip H Hwang from the University of Washington in the US.

“This has important implications on identifying potential participants in prevention trials for Alzheimer’s disease, as well as whether treatments for vision and hearing loss can modify risk for dementia,” Hwang added.

In the study of 2,051 older adults (22.8 per cent with hearing or visual impairment and 5.1 per cent with both impairments) who were followed over eight years, dual sensory impairment was associated with an 86 per cent higher risk for dementia compared with having no sensory impairments.

During follow-up, dementia developed in 14.3 per cent in those with no sensory impairments, 16.9 per cent in those with one sensory impairment, and 28.8 per cent in those with dual sensory impairment.

The findings showed that participants with dual sensory impairment were also twice as likely to develop Alzheimer’s disease (the most common form of dementia) than those without sensory impairments.

“Dual sensory impairment was independently and strongly associated with an increased risk of allacause dementia and Alzheimer’s disease,” the study author wrote.

The researchers noted that further research is needed to characterise the exact role of sensory impairments and whether treatments that improve sensory function, such as surgery or sensory aids, devices, and prostheses, can modify this risk.

–IANS

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(This story has not been edited by Newsd staff and is auto-generated from a syndicated feed.)
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