2026-09-23 コロンビア大学
＜関連情報＞
- https://www.publichealth.columbia.edu/news/employment-instability-early-retirement-linked-cognitive-deficits-risk-dementia
- https://alz-journals.onlinelibrary.wiley.com/doi/10.1002/alz.71863
高齢期の雇用不安と労働力参加の軌跡：健康・退職研究の統一認知評価プロトコルにおける認知機能および認知障害との関連性 Trajectories of late-life job insecurity and labor force participation: Associations with cognitive function and impairment in the Health and Retirement Study’s harmonized cognitive assessment protocol
Erika T. Beidelman, Xuexin Yu, Constance Beaufils, Rachel Donnelly, Mateo Farina, Amanda Sonnega, Lindsay C. Kobayashi, Yuan S. Zhang
Alzheimer’s & Dementia Published: 23 September 2026
DOI:https://doi.org/10.1002/alz.71863
Abstract
INTRODUCTION
Continued workforce participation may preserve later-life cognition, yet many Americans face job insecurity and instability in later life, with potential consequences for cognitive aging.
METHODS
Using Health and Retirement Study (HRS) Harmonized Cognitive Assessment Protocol data (n = 2418), we applied gender-stratified sequence analyses to identify clusters of combined employment and job insecurity trajectories (1998 to 2014). We estimated associations with domain-specific cognitive scores and impairment status in 2016 using weighted, multivariable-adjusted regression.
RESULTS
Six clusters were identified separately for women and men. Among women, self-employed, early retirement, not in labor force, and secure-to-retirement trajectories were significantly associated with lower memory and executive function scores (β range = −0.13 to −0.32 standard deviation units) compared to secure employment. Among men, inconsistent employment was associated with poorer performance across most cognitive domains compared to secure employment. Employment instability and early retirement were associated with higher odds of cognitive impairment among women.
DISCUSSION
These results underscore employment security as a potential protective factor for cognitive aging.
Highlights
- Sequence analysis identified six distinct employment trajectories for men and women.
- Early retirement was linked to lower executive function and memory scores in women.
- Inconsistent employment was associated with lower cognitive scores in men.
- Stable employment clusters were associated with better cognitive health in late life.
