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An Early and Unequal Decline: Life Course Trajectories of Cognitive Aging in the United States.

Publication ,  Journal Article
Yang, YC; Walsh, CE; Shartle, K; Stebbins, RC; Aiello, AE; Belsky, DW; Harris, KM; Chanti-Ketterl, M; Plassman, BL
Published in: J Aging Health
March 2024

Objectives: Cognitive aging is a lifelong process with implications for Alzheimer's disease and dementia. This study aims to fill major gaps in research on the natural history of and social disparities in aging-related cognitive decline over the life span. Methods: We conducted integrative data analysis of four large U.S. population-based longitudinal studies of individuals aged 12 to 105 followed over two decades and modeled age trajectories of cognitive function in multiple domains. Results: We found evidence for the onset of cognitive decline in the 4th decade of life, varying gender differences with age, and persistent disadvantage among non-Hispanic Blacks, Hispanics, and those without college education. We further found improvement in cognitive function across 20th century birth cohorts but widening social inequalities in more recent cohorts. Discussion: These findings advance an understanding of early life origins of dementia risk and invite future research on strategies for promoting cognitive health for all Americans.

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Published In

J Aging Health

DOI

EISSN

1552-6887

Publication Date

March 2024

Volume

36

Issue

3-4

Start / End Page

230 / 245

Location

United States

Related Subject Headings

  • Young Adult
  • United States
  • Middle Aged
  • Life Change Events
  • Humans
  • Health Status Disparities
  • Gerontology
  • Dementia
  • Cognitive Dysfunction
  • Cognitive Aging
 

Citation

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Chicago
ICMJE
MLA
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Yang, Y. C., Walsh, C. E., Shartle, K., Stebbins, R. C., Aiello, A. E., Belsky, D. W., … Plassman, B. L. (2024). An Early and Unequal Decline: Life Course Trajectories of Cognitive Aging in the United States. J Aging Health, 36(3–4), 230–245. https://doi.org/10.1177/08982643231184593
Yang, Yang C., Christine E. Walsh, Kaitlin Shartle, Rebecca C. Stebbins, Allison E. Aiello, Daniel W. Belsky, Kathleen Mullan Harris, Marianne Chanti-Ketterl, and Brenda L. Plassman. “An Early and Unequal Decline: Life Course Trajectories of Cognitive Aging in the United States.J Aging Health 36, no. 3–4 (March 2024): 230–45. https://doi.org/10.1177/08982643231184593.
Yang YC, Walsh CE, Shartle K, Stebbins RC, Aiello AE, Belsky DW, et al. An Early and Unequal Decline: Life Course Trajectories of Cognitive Aging in the United States. J Aging Health. 2024 Mar;36(3–4):230–45.
Yang, Yang C., et al. “An Early and Unequal Decline: Life Course Trajectories of Cognitive Aging in the United States.J Aging Health, vol. 36, no. 3–4, Mar. 2024, pp. 230–45. Pubmed, doi:10.1177/08982643231184593.
Yang YC, Walsh CE, Shartle K, Stebbins RC, Aiello AE, Belsky DW, Harris KM, Chanti-Ketterl M, Plassman BL. An Early and Unequal Decline: Life Course Trajectories of Cognitive Aging in the United States. J Aging Health. 2024 Mar;36(3–4):230–245.
Journal cover image

Published In

J Aging Health

DOI

EISSN

1552-6887

Publication Date

March 2024

Volume

36

Issue

3-4

Start / End Page

230 / 245

Location

United States

Related Subject Headings

  • Young Adult
  • United States
  • Middle Aged
  • Life Change Events
  • Humans
  • Health Status Disparities
  • Gerontology
  • Dementia
  • Cognitive Dysfunction
  • Cognitive Aging