2021 Alzheimer's disease facts and figures.
Level 5 - mechanism / opinion, no new human data
Public health surveillance report synthesizing secondary registry data, demographic projections, and commissioned surveys.
PubMed 33756057 · doi:10.1002/alz.12328
What was done
The Alzheimer's Association compiled public health, mortality, economic, and survey data to report on the US burden of Alzheimer's disease (AD) in 2021. The report analyzed incidence and prevalence projections, official 2019 death certificate data, healthcare utilization and Medicare/Medicaid payment differences, estimates of unpaid caregiver hours and valuation for 2020, and survey findings regarding racial and ethnic disparities in dementia care and clinical trial participation.
What was found
An estimated 6.2 million Americans aged 65 and older were living with AD in 2021, projected to increase to 13.8 million by 2060. Official death certificates recorded 121,499 AD deaths in 2019, reflecting an increase of more than 145% between 2000 and 2019 (during which stroke, heart disease, and HIV mortality declined). In 2020, more than 11 million unpaid caregivers provided roughly 15.3 billion hours of care, valued at $256.7 billion. Total 2021 healthcare, long-term care, and hospice costs for older adults with dementia were estimated at $355 billion, with per-person Medicare payments more than 3-fold higher and Medicaid payments more than 23-fold higher than for beneficiaries without dementia. Disparities in illness burden and care access persist across Black, Hispanic, Asian American, and Native American populations.
Why it matters
This annual benchmark documents the escalating public health, economic, and caregiver burdens imposed by Alzheimer's dementia in the United States. It highlights widening racial and ethnic disparities in dementia care access and clinical research representation that require targeted health policy interventions.
Limits
The abstract relies on aggregated secondary databases, statistical modeling projections, and death certificate records, which are subject to cause-of-death coding inaccuracies and diagnostic underreporting. Detailed survey methodologies, response rates, and uncertainty intervals for the reported economic valuations and prevalence estimates are not provided in the abstract.
Cited by
- supports Alzheimer's disease currently affects approximately 6 million Americans.