Evidence map›Paper›PMID 33329116›Full record

SynthesisFrontiers in psychiatry2020

Gender Difference in the Prevalence of Insomnia: A Meta-Analysis of Observational Studies.

Liang-Nan Zeng, Qian-Qian Zong, Yuan Yang, Ling Zhang, Yi-Fan Xiang, Chee H Ng, Li-Gang Chen, Yu-Tao Xiang

Registry-linked trialAbstract readSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Frontiers in psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06869486 (Insomnia´s Impact on DNA Stability, Cardio-metabolic Health and Lifestyle Behaviors), which is not on this map. Cited by 185 papers, 10 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
185citing papers in PubMed, 10 pooled it
–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

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.

NCT06869486 recruitingnot on this mapstarted 2024, after this paper: background citation

Insomnia´s Impact on DNA Stability, Cardio-metabolic Health and Lifestyle Behaviors: A Case-control Study

TypeobservationalSponsorUniversidad Autonoma de Baja CaliforniaRan2024 to 2026Enrolled300ConditionsInsomnia, Cardiorespiratory Fitness, Metabolic DiseaseArmsExercise, Bioelectrical Impedance, Micronucleus Assay, Physical activity and sedentary time, Sleep
3 · Its place in the literature

Who cites it

185 citing papers in PubMed, 10 syntheses or guidelines pooled it.

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  12. Comorbid insomnia and sleep apnea is associated with worse verbal episodic memory in older females.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025
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125 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

8 authors.

Liang-Nan ZengDepartment of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China.
Qian-Qian ZongThe National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital & the Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.
Yuan YangUnit of Psychiatry, Faculty of Health Sciences, Institute of Translational Medicine, University of Macau, Macao, China.
Ling ZhangThe National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital & the Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.
Yi-Fan XiangPui Ching Middle School Macau, Macao, China.
Chee H NgDepartment of Psychiatry, The Melbourne Clinic and St. Vincent's Hospital, University of Melbourne, Melbourne, VIC, Australia.
Li-Gang ChenDepartment of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China.
Yu-Tao XiangUnit of Psychiatry, Faculty of Health Sciences, Institute of Translational Medicine, University of Macau, Macao, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

gender differenceinsomniameta-analysisobservational studiesprevalence

Identifiers

PMID33329116
PMCPMC7714764

What OpenQuestion holds

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Registered trials

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.