Evidence map›Paper›PMID 40122947›Full record

ArticleScientific reports2025

The mediating effects of sleep quality in the relationship between loneliness and depression among middle-aged and older adults.

Yue Liu, Donglin Zhang, Linpeng Sui, Dan Li, Minjuan Wang, Wenhua Wang, Mei Xue, Jianfeng Hao, Lei Zhang, Mingyang Wu

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Yue Liu *Department of General Medicine, The Third Affiliated Hospital of Xi'an Medical University, Xi'an, 710061, China.
Donglin Zhang *Department of General Medicine, The First Affiliated Hospital of Xi'an Medical University, Xi'an, 710077, China.
Linpeng SuiDepartment of General Medicine, The Third Affiliated Hospital of Xi'an Medical University, Xi'an, 710061, China.
Dan LiDepartment of Research Management, The Third Affiliated Hospital of Xi'an Medical University, Xi'an, 710061, China.
Minjuan WangDepartment of General Medicine, The Third Affiliated Hospital of Xi'an Medical University, Xi'an, 710061, China. 2602942082@qq.com.
Wenhua WangShaanxi Health Industry Association Service Centre, Xi'an, 710003, China.
Mei XueDepartment of General Medicine, The Third Affiliated Hospital of Xi'an Medical University, Xi'an, 710061, China.
Jianfeng HaoDepartment of Research Management, The Third Affiliated Hospital of Xi'an Medical University, Xi'an, 710061, China.
Lei ZhangShaanxi Health Industry Association Service Centre, Xi'an, 710003, China. 21443141@qq.com.
Mingyang WuDepartment of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, 410078, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Loneliness has long been recognized as a key predictor of depression in older adults, and both are related to sleep quality. However, to this day, less is known about whether sleep quality mediates their relationship. This study aimed to examine the relationship between loneliness, sleep quality, and depressive symptoms, and to further explore whether sleep quality mediates the relationship between loneliness and depressive symptoms. Using the random cluster sampling method, 1016 permanent residents aged 45 and above in Ankang City, Shaanxi Province were selected. The relationship between loneliness, sleep quality, and depressive symptoms was analyzed using binary logistic regression, and the mediating role of sleep quality between loneliness and depressive symptoms was analyzed using the PROCESS macro in SPSS 25.0 software. The average age of the participants in this study was 60.39 ± 8.50. Regression analyses showed that individuals with loneliness (OR 7.161, 95%CI: 4.889-10.490, P < 0.001) and those with poor sleep quality (OR 4.777, 95%CI: 3.301-6.913, P < 0.001) were more likely to experience depressive symptoms than individuals without loneliness and with good sleep quality. This study also found a significant mediating effect of sleep quality between loneliness and depressive symptoms [effect value = 0.066, bootstrap 95% CI: (0.037, 0.093)] with an effect size of 13.31%. Loneliness may lead to reduced sleep quality in individuals, which in turn may lead to or exacerbate depressive symptoms. Therefore, this study highlights the importance of assessing and improving sleep quality in lonely people.

Indexed as

DepressionLonelinessSleepSleep QualityAgedAged, 80 and overChinaFemaleHumansMaleMiddle AgedDepressionLonelinessMediating effectMiddle and old adultsSleep quality

Identifiers

PMID40122947
PMCPMC11931007

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.