Global Perspectives on Social Relationships and Cognitive Decline in Older Adults: Insights From Cohort Studies in the U.S., Mexico, England, and China

Jie Li, Yujie Wang, Leiyu Shi, Zhuozhao Zheng, You Wu, Nan Jiang, Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Department of Radiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua Medicine, Tsinghua University, Clinical Research Center, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, School of Healthcare Management, Tsinghua Medicine, Tsinghua University, Department of Social Services, Beijing Tsinghua Changgung Hospital, Tsinghua University

Journal of Applied Gerontology

Published online on July 30, 2026

Abstract

Journal of Applied Gerontology, Ahead of Print.
BackgroundThis research aimed to explore associations between social relationships and annual cognitive decline in older adults globally.MethodsHarmonized data from 4 longitudinal aging cohorts across the U.S., Mexico, England, and China were included. ...