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Published on: May 16, 2017
Social Relationships in Early Life and Episodic Memory in Mid- and Late Life
Zhenmei Zhang1, Hongwei Xu2, Lydia W Li3
1Department of Sociology, Michigan State University, East Lansing, Michigan.
Objectives:
This study examines the longitudinal relationships between retrospective reports of early-life social relationships (i.e., having good friends, parent-child relationship quality, and childhood neighborhood social cohesion) and episodic memory in China.
Methods:
We analyzed 2 waves of data (2011 and 2015) from the China Health and Retirement Longitudinal Study. The analytical sample included 9,285 respondents aged 45 and older at baseline. A lagged dependent variable approach was used to estimate the associations between measures of early-life social relationships and episodic memory change at the study's 4-year follow-up.
Results:
Retrospective reports of better early-life social relationships are significantly associated with higher levels of episodic memory performance in 2015 among middle-aged and older Chinese, controlling for episodic memory in 2011, childhood socioeconomic status, adulthood sociodemographic variables, and the history of stroke. Educational attainment accounts for a significant portion of the associations between early-life social relationships and episodic memory. In contrast, mental health and social engagement in adulthood account for a small part of these associations.
Discussion:
The findings suggest that positive early-life social relationships are beneficial for episodic memory in mid- and late life, and more research is needed to examine the underlying mechanisms.
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