Trends in Alzheimer Disease Mortality Among American Indian and Alaska Native People Between 2011 and 2019

Alzheimer Dis Assoc Disord. 2023 Apr-Jun;37(2):93-99. doi: 10.1097/WAD.0000000000000555. Epub 2023 Apr 28.

Abstract

Purpose: The number of American Indian and Alaska Native (AI/AN) people living with dementia is expected to increase 5-fold by 2060. Social determinants of health may explain disparities in the incidence of Alzheimer disease (AD) but remain largely overlooked.

Methods: We examined the time trend of AD mortality rates and associations of the percentage of AI/ANs, density of primary care physicians and neurologists, area deprivation index, rurality, and Indian Health Service region with AD mortality in 646 purchased/referred care delivery area counties.

Results: AD mortality rates significantly increased over time. Counties with higher concentrations of AI/AN people had lower AD mortality. More deprived counties had 34% higher AD mortality compared with less deprived counties. AD mortality was 20% lower in nonmetro counties than in metro counties.

Conclusions: Findings have implications for prioritizing areas where more resources for AD care, education, or outreach are needed.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alzheimer Disease* / ethnology
  • Alzheimer Disease* / mortality
  • American Indian or Alaska Native*
  • Humans
  • United States / epidemiology