时间标签：数据日期 2026-11-01 · 生成时间 2026-11-01 05:30（Asia/Shanghai）｜ 检索窗口 PubMed edat 2026/10/31–2026/11/01 ｜ 情报发生日期 2026-11-01
研究问题
Although previous studies have reported pairwise associations among sunlight exposure, depressive symptoms, and cognitive function, it remains unclear whether depressive symptoms statistically account for part of the association between…；Therefore, this study aimed to examine the current status of sunlight exposure, depressive symptoms, and cognitive function among older adults living in nursing homes; identify factors associated with these variables; and determine whether…
方法
（原文未给出可直接抽取的对应表述）
核心结论
Poorer family relationships, absence of hobbies or interests, less frequent outdoor activity, and the presence of retinopathy or another eye disease were associated with greater depressive symptoms.；Taken together, the findings support a multipathway interpretation in which environmental light exposure, emotional health, and cognitive function are interrelated within the nursing-home context.；Compared with personal savings, receiving a pension (B = 0.270, P < 0.001) or support from a social pooling fund (B = 0.421, P < 0.001) was associated with higher sunlight exposure scores.；After adjustment for the other variables in the model, being without a spouse rather than having a spouse was associated with a lower depressive symptom score (B = −1.012, P = 0.011).
局限
Because these potential explanations were not directly assessed, the finding should be interpreted cautiously and confirmed in future studies using more detailed measures of social networks, perceived support, loneliness, and relationship…；First, the cross-sectional design does not establish the temporal ordering of sunlight exposure, depressive symptoms, and cognitive function.
对本项目的价值
人群纵向证据，可用于假说生成与终点选择：线粒体是衰老干预的共同下游效应器，可用于跨器官效应的统一读数。 ｜ 价值分 1.0/5（★☆☆☆☆）
全文来源
PubMed PMC JATS 全文（正文 41,313 字符，已过 DOI 逐字 + 题名指纹双重归属校验）
原文题录
- 英文标题：Sunlight Exposure, Depressive Symptoms, and Cognitive Function Among Older Adults in Nursing Homes: A Cross-Sectional Mediation Analysis.
- 期刊与标识：Journal of multidisciplinary healthcare · PMID 42960129 · DOI 10.2147/jmdh.s639759
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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