Evidence map›Paper›PMID 20478741›Full record

Trial reportSleep medicine2010

Insomnia severity is an indicator of suicidal ideation during a depression clinical trial.

W Vaughn McCall, Jill N Blocker, Ralph D'Agostino, James Kimball, Niki Boggs, Barbara Lasater, Peter B Rosenquist

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Sleep medicine, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed, 4 pooled it
13.1field-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

98 citing papers in PubMed, 4 syntheses or guidelines pooled it, 233 citations in OpenAlex.

  1. Pooled it
  2. Eszopiclone for insomnia.The Cochrane database of systematic reviews · 2018
    Pooled it
  3. Pharmacotherapy Treatment Options for Insomnia: A Primer for Clinicians.International journal of molecular sciences · 2015
    Guideline
  4. Pooled it
  5. Trial
  6. Trial
  7. Trial
  8. Trial
  9. Trial
  10. The Effects of Lithium Carbonate Supplemented with Nitrazepam on Sleep Disturbance during Cannabis Abstinence.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2015
    Trial
  11. Trial
  12. Trial
  13. Trial
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  15. Trial
  16. Article
  17. The effect of psychotherapy on the multivariate association between insomnia and depressive symptoms in late-life depression.European psychiatry : the journal of the Association of European Psychiatrists · 2025
    Article
  18. Article
  19. Article
  20. Article

38 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

7 authors at 1 institution in 1 country.

W Vaughn McCallDepartment of Psychiatry and Behavioral Medicine, Wake Forest University Health Sciences, Winston-Salem, NC 27157, USA. vmccall@wfubmc.edu
Jill N Blocker
Ralph D'Agostino
James Kimball
Niki Boggs
Barbara Lasater
Peter B Rosenquist
Wake Forest University · US

Funding

WORKER PROTECTION AGAINST AIRBORNE INFLUENZA - A PILOT STUDYM01RR007122 · NCRR · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI HOLMES, ROSS P · 1992 to 2010
$35.2M
Hypnotics and the Treatment of Psychiatric DisordersR34MH070821 · NIMH · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI MCCALL, WILLIAM VAUGHN · 2005 to 2007
$563k
NCRR NIH HHS M01 RR007122NCRR NIH HHS M01-RR07122NIMH NIH HHS MH70821NIMH NIH HHS R34 MH070821
6 · The paper itself

Abstract

objectiveInsomnia has been linked to suicidal ideas and suicide death in cross-sectional and longitudinal population-based studies. A link between insomnia and suicide has not been previously examined in the setting of a clinical trial. Herein we describe the relationship between insomnia and suicidal thinking during the course of a clinical trial for depression with insomnia.

methodsSixty patients aged 41.5±12.5 years (2/3 women) with major depressive episode and symptoms of insomnia received open-label fluoxetine for 9 weeks and also received blinded, randomized eszopiclone 3mg or placebo at bedtime after the first week of fluoxetine. Insomnia symptoms were assessed with the Insomnia Severity Index (ISI), and suicidal ideation was assessed with The Scale for Suicide Ideation (SSI). Depression symptoms were assessed with the depressed mood item and the anhedonia item from the Hamilton Rating Scale for Depression-24 (HRSD24), as well as a sum score for all non-sleep and non-suicide items from the HRSD (HRSD20). Measurements were taken at baseline and weeks 1, 2, 4, 6, and 8. SSI was examined by generalized linear mixed models for repeated measures as the outcome of interest for all 60 participants with ISI and various mood symptoms as independent variables, with adjustment for age, gender, treatment assignment, and baseline SSI.

resultsHigher levels of insomnia corresponded to significantly greater intensity of suicidal thinking (p<0.01). The depressed mood item of the HRSD, and the sum of the HRSD20, both corresponded to greater suicidal thinking (p<0.001). The anhedonia item did not correspond with suicidal thinking. When both ISI and the depressed mood item, or ISI and the anhedonia item, were included together in the same model, the ISI remained an independent predictor of suicidal thinking.

conclusionsThe results support the concept that insomnia may be a useful indicator for suicidal ideation and now extend this idea into clinical trials. Insomnia remains an independent indicator of suicidal ideation, even taking into account the core symptoms of depression such as depressed mood and anhedonia. The complaint of insomnia during a depression clinical trial might indicate that more direct questioning about suicide is warranted.

Indexed as

Suicidal IdeationAdolescentAdultAgedAntidepressive Agents, Second-GenerationAzabicyclo CompoundsDouble-Blind MethodEszopicloneFemaleFluoxetineHumansHypnotics and SedativesMajor Depressive DisorderMaleMiddle AgedPiperazinesAntidepressive Agents, Second-GenerationAzabicyclo CompoundsEszopicloneFluoxetineHypnotics and SedativesPiperazines

Identifiers

PMID20478741
PMCPMC2936685
OpenAlexW1974414958

What OpenQuestion holds

Textmetadata
LicenceTDM
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.