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南 第4期 总第135期
南京医科大学学报(社会科学版)京医科大学学报(社会科学版)
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Journal of Nanjing Medical University(Social Sciences)of Nanjing Medical University(Social Sciences) 2026年8月
Journal
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Impact of digital literacy on cognitive function among rural empty⁃nest
older adults in China: a moderated chain⁃mediation effect
Su Yue,Zhang Yu,Wan Xiaojuan,Zou Yan,Liu Lin
School of Nursing,Yangzhou University,Yangzhou 225009,China
Abstract:This study aims to explore the impact of digital literacy on cognitive function among rural empty⁃
nest older adults in China and its underlying mechanisms. Using data from the 2020 China Health and
Retirement Longitudinal Study(CHARLS),2 325 eligible rural empty⁃nest older adults aged 60 and above
were selected as the sample to collect their digital literacy,social participation,depressive symptoms,cognitive
function,education level,and related demographic data. Correlation analysis was used to examine relationships
among variables,and the Process macro program was employed to test the chain ⁃ mediation effect of social
participation and depression,as well as the moderating role of education level in the relationship between
digital literacy and social participation. Results indicated that digital literacy can indirectly improve cognitive
function among rural empty ⁃ nest older adults by promoting social participation and alleviating depressive
symptoms,and education level strengthened this mechanism. The findings suggest that it is essential to focus on
differences in educational backgrounds in efforts to improve digital literacy among rural empty⁃nest older adults.
Tailored digital support strategies should be designed for different education groups to promote social
participation,alleviate depressive symptoms,and delay cognitive decline.
Key words:rural empty⁃nest older adults;digital literacy;cognitive function;social participation;depression

