Evidence map›Paper›PMID 34107425›Full record

ReviewJournal of affective disorders2021

Association between perceived stress and depression among medical students during the outbreak of COVID-19: The mediating role of insomnia.

Zhuang Liu, Rongxun Liu, Yue Zhang, Ran Zhang, Lijuan Liang, Yang Wang, Yange Wei, Rongxin Zhu, Fei Wang

Open access · hybridAbstract readReview
In one paragraph

Review in Journal of affective disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed, 2 pooled it
14.8field-weighted citation impact, top 1% of its field
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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

83 citing papers in PubMed, 2 syntheses or guidelines pooled it, 131 citations in OpenAlex.

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  7. [Bidirectional longitudinal associations of perceived stress with anxiety and depressive symptoms among medical students: A threeZhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2026
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23 more citing papers are in PubMed but not listed here.

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

9 authors at 4 institutions in 1 country.

Zhuang LiuSchool of Public Health, China Medical University, Shenyang, Liaoning, China; Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China.
Rongxun LiuDepartment of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China; School of Medical Engineering, Xinxiang Medical University, Xinxiang, Henan, China; Early Intervention Unit, Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Yue ZhangSchool of Public Health, China Medical University, Shenyang, Liaoning, China.
Ran ZhangEarly Intervention Unit, Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Lijuan LiangDepartment of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China; Department of Psychology, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China.
Yang WangPsychology Institute, Inner Mongolia Normal University, Huhehaote, Inner Mongolia, China.
Yange WeiEarly Intervention Unit, Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Rongxin ZhuEarly Intervention Unit, Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Fei WangEarly Intervention Unit, Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China; Department of Psychiatry and Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China; Nanjing Functional Brain Imaging Institute of Nanjing Medical University, Nanjing, Jiangsu, China. Electronic address: fei.wang@yale.edu.
Nanjing Brain Hospital · CNFirst Hospital of China Medical University · CNChina Medical University · CNInner Mongolia Normal University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe purpose of this study was to explore the association between perceived stress and depression among medical students and the mediating role of insomnia in this relationship during the COVID-19 pandemic in China.

methodsA cross-sectional survey was conducted from March to April 2020 in medical university. Levels of perceived stress, insomnia and depression were measured using Perceived Stress Scale (PSS), Insomnia Severity Index (ISI) and Patient Health Questionnaire 9 (PHQ-9). The descriptive analyses of the demographic characteristics and correlation analyses of the three variables were calculated. The significance of the mediation effect was obtained using a bootstrap approach with SPSS PROCESS macro.

resultsThe mean age of medical students was 21.46 years (SD=2.50). Of these medical students, 10,185 (34.3%) were male and 19,478 (65.7%) were female. Perceived stress was significantly associated with depression (β=0.513, P < 0.001). Insomnia mediated the association between perceived stress and depression (β=0.513, P < 0.001). The results of the non-parametric bootstrapping method confirmed the significance of the indirect effect of perceived stress through insomnia (95% bootstrap CI =0.137, 0.149). The indirect effect of insomnia accounted for 44.13% of the total variance in depression.

conclusionsThese findings contribute to a better understanding of the interactive mechanisms underlying perceived stress and depression, and elucidating the mediating effects of insomnia on the association. This research provides a useful theoretical and methodological approach for prevention of depression in medical students. Findings from this study indicated that it may be effective to reduce depression among medical students by improving sleep quality and easing perceived stress.

Indexed as

COVID-19Sleep Initiation and Maintenance DisordersStudents, MedicalAdultAnxietyChinaCross-Sectional StudiesDepressionDisease OutbreaksFemaleHumansMalePandemicsSARS-CoV-2Stress, PsychologicalYoung AdultCOVID-19DepressionInsomniaMediation effectPerceived stress

Identifiers

PMID34107425
PMCPMC8595067
OpenAlexW3168695089

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.