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. 2023 Oct;19(10):4388-4395.
doi: 10.1002/alz.13081. Epub 2023 Jul 17.

Prevalence of Alzheimer's disease dementia in the 50 US states and 3142 counties: A population estimate using the 2020 bridged-race postcensal from the National Center for Health Statistics

Klodian Dhana  1   2 , Todd Beck  1   2 , Pankaja Desai  1   2 , Robert S Wilson  3 , Denis A Evans  1   2 , Kumar B Rajan  1   2
Affiliations

Prevalence of Alzheimer's disease dementia in the 50 US states and 3142 counties: A population estimate using the 2020 bridged-race postcensal from the National Center for Health Statistics

Klodian Dhana et al. Alzheimers Dement. 2023 Oct.

Abstract

Introduction: This study estimates the prevalence and number of people living with Alzheimer's disease (AD) dementia in 50 US states and 3142 counties.

Methods: We used cognitive data from the Chicago Health and Aging Project, a population-based study, and combined it with the National Center for Health Statistics 2020 bridged-race population estimates to determine the prevalence of AD in adults ≥65 years.

Results: A higher prevalence of AD was estimated in the east and southeastern regions of the United States, with the highest in Maryland (12.9%), New York (12.7%), and Mississippi (12.5%). US states with the highest number of people with AD were California, Florida, and Texas. Among larger counties, those with the highest prevalence of AD were Miami-Dade County in Florida, Baltimore city in Maryland, and Bronx County in New York.

Discussion: The state- and county-specific estimates could help public health officials develop region-specific strategies for caring for people with AD.

Keywords: 2020 US prevalence; Alzheimer's disease; aging; dementia; epidemiology; prevalence.

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Conflict of interest statement

Conflicts

KD and KBR are funded by Alzheimer’s Association and NIH research grants and reports no conflicts of interest. TB, PD, RSW, and DAE reports no conflicts of interest.

Figures

Figure 1:
Figure 1:
Estimated prevalence and the number of people with Alzheimer’s dementia in 50 U.S. states for adults 65 years and older
Figure 2:
Figure 2:
Estimated prevalence and the number of people with Alzheimer’s dementia in 3142 U.S. counties for adults 65 years and older
See this image and copyright information in PMC

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