Dementia mainly affects older adults, and contributes to a huge global burden of disease. In 2015, there were 46.8 million people with dementia around the world, a figure that will nearly double every 20 years, reaching 74.7 million in 2030 and 131.5 million in 2050. The worldwide cost of dementia was $695.2 billion in 2015 and will surpass $1 trillion in 2018 and $2 trillion in 2030. The prevalence of dementia increases with age—from 3% of people aged 65 to 74 to 19% of those aged 75 to 84 and almost half of those aged 85 and older. Dementia places a heavy burden on individuals with dementia, their families, and healthcare systems. In 2015, dementia accounted for 13.93 million disability‐adjusted life years, which it is expected will increase substantially in the next few years. With rapid population aging, dementia will become an urgent public health concern.Evidence has suggested a potential link between sensory impairment and dementia. The prevalence of sensory impairment (hearing, vision, combined hearing and vision impairment) and of dementia is increasing drastically with age, and sensory impairment and dementia share common risk factors, such as diabetes mellitus, congestive heart failure, and other chronic diseases. Moreover, neurophysiological change from
Journal of American Geriatrics Society – Wiley
Published: Jan 1, 2018
Keywords: ; ; ;
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