Evidence map›Paper›PMID 24587566›Full record

ArticleSleep2014

Associations between subjective sleep quality and brain volume in Gulf War veterans.

Linda L Chao, Brian S Mohlenhoff, Michael W Weiner, Thomas C Neylan

Open access · bronzeAbstract read
In one paragraph

Article in Sleep, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.3field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 55 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Linda L ChaoDepartments of Radiology and Biomedical Imaging ; Psychiatry, University of California, San Francisco, CA ; Center for Imaging of Neurodegenerative Diseases.
Brian S MohlenhoffPsychiatry, University of California, San Francisco, CA ; Center for Imaging of Neurodegenerative Diseases.
Michael W WeinerDepartments of Radiology and Biomedical Imaging ; Psychiatry, University of California, San Francisco, CA ; Center for Imaging of Neurodegenerative Diseases.
Thomas C NeylanPsychiatry, University of California, San Francisco, CA ; Mental Health Service, Department of Veterans Affairs Medical Center, San Francisco, CA.
University of California, San Francisco · US

Funding

TRAINING THE NEXT GENERATION OF MENTAL HEALTH RESEARCHERSR25MH060482 · NIMH · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI DANIEL H MATHALON, Susan M. Voglmaier · 2000 to 2026
$5.2M
Neuroendocrine Regulation of Sleep in PTSDR01MH073978 · NIMH · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI NEYLAN, THOMAS C · 2005 to 2008
$1.8M
Cognitive Behavioral Treatment of Insomnia in Posttraumatic Stress DisorderR34MH077667 · NIMH · NORTHERN CALIFORNIA INSTITUTE/RES/EDU · PI NEYLAN, THOMAS C · 2008 to 2010
$638k
NIMH NIH HHS R01 MH073978NIMH NIH HHS R25 MH060482NIMH NIH HHS R34 MH077667
6 · The paper itself

Abstract

STUDY

objectivesTo investigate whether subjective sleep quality is associated with brain volume independent of comorbid psychiatric conditions.

designCross-sectional.

settingDepartment of Veterans Affairs (VA) Medical Center.

participantsOne hundred forty-four Gulf War Veterans (mean age 45 years; range: 31-70 years; 14% female).

interventionsNone. MEASUREMENTS AND

resultsTotal cortical, lobar gray matter, and hippocampal volumes were quantified from 1.5 Tesla magnetic resonance images using Freesurfer version 4.5. Subjective sleep quality was assessed with the Pittsburgh Sleep Quality Index (PSQI). Multiple linear regressions were used to determine the association of sleep quality with total and regional brain volumes. The global PSQI score was positively correlated with lifetime and current posttraumatic stress disorder (PTSD) and current depressive symptoms (P < 0.001) and was higher in veterans with Gulf War Illness, trauma exposure, and those using psychotropic medication (P ≤ 0.03). After adjusting for these comorbid variables, age, intracranial volume, and multiple comparisons, global PSQI was inversely associated with total cortical and frontal gray matter volume (adjusted P ≤ 0.03). Within the frontal lobe, total PSQI was inversely associated with the superior and middle frontal, orbitofrontal, anterior cingulate, and frontal pole volumes (adjusted P ≤ 0.02). Examination of the 3-factor structure of the PSQI revealed that the associations were driven by perceived sleep quality.

conclusionsPoorer subjective sleep quality was associated with reduced total cortical and regional frontal lobe volumes independent of comorbid psychiatric conditions. Future work will be needed to examine if effective treatment of disturbed sleep leads to improved structural and functional integrity of the frontal lobes.

Indexed as

Gulf WarAdultAgedBrainComorbidityCross-Sectional StudiesDepressionFemaleFrontal LobeHumansMaleMiddle AgedSleepSleep Initiation and Maintenance DisordersSleep Wake DisordersStress Disorders, Post-TraumaticFreesurferFrontal lobeGulf War VeteransPittsburgh Sleep Quality Indexstructural imaging

Identifiers

PMID24587566
PMCPMC3920309
OpenAlexW2089221078

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.