Aug 25, 2015

The Global Impact of Dementia, World Alzheimer Report 2015

The World Alzheimer Report 2015 - 'The Global Impact of Dementia: An analysis of prevalence, incidence, cost and trends’ - found that there are currently:
  • 46.8 million worldwide are living with dementia
  • with numbers projected to nearly double every 20 years, 
  • increasing to 74.7 million by 2030, and 131.5 million by 2050,
  • The total estimated worldwide cost of dementia in 2015 is $818 billion,
  • By 2018, dementia will become a trillion dollar disease, rising to $2 trillion by 2030.
Around the world there will be over 9.9 million new cases of dementia this year, implying about one new case every 3 seconds.

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The World Alzheimer Report 2015, The Global Impact of Dementia: An analysis of prevalence, incidence, cost and trends updates Alzheimer's Disease International's global dementia data.

The report includes a systematic review of the evidence for and against recent trends in the prevalence and incidence of dementia over time, as well as an analysis of the broader societal impact of dementia.


The report was researched and authored by Prof Martin Prince, Prof Anders Wimo, Dr MaĆ«lenn Guerchet, Miss Gemma-Claire Ali, Dr Yu-Tzu Wu and Dr Matthew Prina on behalf of the Global Observatory for Ageing and Dementia Care which is hosted at the Health Service and Population Research Department, King’s College London.

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