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. Author manuscript; available in PMC: 2019 Jul 1.
Published in final edited form as: Mol Neurobiol. 2017 Sep 30;55(7):5526–5536. doi: 10.1007/s12035-017-0758-1

Table 1.

Alzheimer’s Epidemiological and Burden of Disease facts [2527].

Worldwide Alzheimer’s disease:
  • Worldwide, nearly 44 million people have Alzheimer’s or a related dementia. (Alzheimer’s Disease International)

  • Only 1-in-4 people with Alzheimer’s disease have been diagnosed. (Alzheimer’s Disease International)

  • Alzheimer’s and dementia are most common in Western Europe (North America is close behind).

  • Alzheimer’s is least prevalent in Sub-Saharan Africa. (Alzheimer’s Disease International)

  • Alzheimer’s and other dementias are the top cause for disabilities in later life. (Alzheimer’s Disease International)

The cost of AD Care:
  • The cost of caring for Alzheimer’s patients in the U.S. is estimated to be $236 billion in 2016. (Alzheimer’s Association) http://act.alz.org/site/DocServer/2012_Costs_Fact_Sheet_version_2.pdf?docID=7161

  • The global cost of Alzheimer’s and dementia is estimated to be $605 billion, which is equivalent to 1% of the entire world’s gross domestic product.

  • Medicare and Medicaid are expected to pay $154 billion in 2017 for health care, long-term care and hospice for people with Alzheimer’s disease and other dementias.

  • Aggregate Cost of Care by Payer for Americans Age 65 and Older with Alzheimer’s Disease and Other Dementias: Medicare $113 Billion, Medicaid $41 Billion, Out of pocket $44 Billion, Other $29 Billion.

Alzheimer’s in the United States
  • 1-in-9 Americans over 65 has Alzheimer’s disease. (Alzheimer’s Association)

  • When the first wave of baby boomers reaches age 85 (in 2031), it is projected that more than 3 million people age 85 and older will have Alzheimer’s. (Alzheimer’s Association)

  • One-third of Americans over age 85 are afflicted with the illness. (Alzheimer’s Association)

  • 5.3 million Americans are living with Alzheimer’s disease. (Alzheimer’s Association)

  • Unless a cure is found, more than 16 million Americans will have the disease by 2050. (Alzheimer’s Association)

  • Alzheimer’s disease is the 6th leading cause of death in America. (Centers for Disease Control)

  • 1-in-3 seniors die with Alzheimer’s or another kind of dementia. (Centers for Disease Control)

  • Typical life expectancy after an Alzheimer’s diagnosis is 4-to-8 years. (Alzheimer’s Association)

  • In 2016, the 85-years-and-older population includes about 2 million people with Alzheimer’s disease, or 40% of all people with Alzheimer’s age 65 and older. (Alzheimer’s Association)

  • By 2050, there could be as many as 7 million people age 85 and older with Alzheimer’s disease, accounting for half (51%) of all people 65 and older with Alzheimer’s. (Alzheimer’s Association)

  • Proportion of people with Alzheimer’s Disease in the United States by age: (Alzheimer’s Association) 85+ years – 38%, 75–84 years, 44%, 65–74 years, 15%, <65 years, 4%

Alzheimer’s Incidence by Age and Ethnicity