时间标签：数据日期 2026-10-31 · 生成时间 2026-11-01 05:30（Asia/Shanghai）｜ 检索窗口 PubMed edat 2026/10/28–2026/10/31 ｜ 情报发生日期 2026-10-31
研究问题
By December 2022, there were 153 million internet users aged 60 years and above, with a penetration rate exceeding 50% [].；However, most existing studies have focused on working populations, patients with specific clinical conditions, or university students [, ], with relatively limited attention to adults in later middle‐ and older adulthood.；To address these gaps, we analyzed data from a large national survey of adults aged 50 years and older with broad geographic coverage across China.
方法
Eligible participants were adults aged 50 years and older who had resided in mainland China for at least 6 months at the time of the survey.；The questionnaire collected information covering sociodemographic characteristics, internet access and usage, eHealth literacy, daily activities, and mental well‐being of this population group.；Within each selected grassroots unit, 20 eligible individuals were randomly recruited.；All quotas were formulated in accordance with the population distribution of residents aged 50 years and older recorded in the Seventh National Population Census in 2020.
核心结论
In terms of education, 22.50% had primary school education or below, 34.48% had middle school education, 34.80% had a high school degree, and 8.22% held a college degree or higher.；Higher eHealth literacy was significantly correlated with fewer depressive symptoms (β = −0.029, 95% CI = [−0.052, −0.006], p = 0.012) (Table ).；When eHealth literacy was stratified into tertiles, participants in the middle (β = −0.345, 95% CI = [−0.634, −0.055], p = 0.020) and high literacy groups exhibited lower levels of depressive symptoms relative to those in the low literacy group (Table ). ‖ 结论：These findings indicate that eHealth literacy may be relevant when developing future mental health support strategies for adults aged 50 years and older.
局限
Drawing on the stress and coping theory, this study comprehensively examined the association between eHealth literacy and depressive symptoms among adults aged 50 years and older and further tested the mediating roles and explored income‐based heterogeneity.；Physical activity may not only fortify physical constitution but also stimulate the cerebral release of endorphins.；The nonsignificant finding regarding online healthcare services warrants particular attention.
对本项目的价值
★☆☆☆☆ 生殖衰老提供「衰老速率可被激素轴调节」的天然实验窗口。设计 cross-sectional。
全文来源
PMC JATS 全文（正文 50,296 字符，已过标题/DOI 逐字归属校验）
原文题录
- 英文标题：eHealth Literacy and Depressive Symptoms Among Adults Aged 50 Years and Older in China: A National Cross-Sectional Study.
- 期刊与标识：Depress Anxiety · PMID 42953119 · DOI 10.1155/da/3142110
A 级证据分级：A 级（同行评议人体研究）
本文属人体研究证据，但需注意：观察性或小样本干预的结论不等于已证实临床获益；效应量与长期安全性仍需更大规模、更长随访的试验验证。
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