Evidence map›Paper›PMID 31117963›Full record

ArticleBMC psychiatry2019

Are personnel with a past history of mental disorders disproportionately vulnerable to the effects of deployment-related trauma? A cross-sectional study of Canadian military personnel.

Peter J H Beliveau, Hugues Sampasa-Kanyinga, Ian Colman, Mark A Zamorski

Erratum issuedAbstract read
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In one paragraph

Article in BMC psychiatry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

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

6 citing papers in PubMed.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Peter J H BeliveauDirectorate of Mental Health, Canadian Forces Health Services Group, 101 Colonel By Drive Carling Campus, Building 9, Ottawa, ON, K1A 0K2, Canada. Peter.Beliveau@forces.gc.ca.ORCID 0000-0002-7081-4769
Hugues Sampasa-KanyingaDirectorate of Mental Health, Canadian Forces Health Services Group, 101 Colonel By Drive Carling Campus, Building 9, Ottawa, ON, K1A 0K2, Canada.
Ian ColmanSchool of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, ON, Canada.
Mark A ZamorskiDirectorate of Mental Health, Canadian Forces Health Services Group, 101 Colonel By Drive Carling Campus, Building 9, Ottawa, ON, K1A 0K2, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPast mental disorders predict future disorders, both in the presence and absence of trauma exposure. However, it is not clear whether those with past mental disorders are disproportionately vulnerable to the negative effects of a given level of trauma.

methodsThe data source was the 2013 Canadian Forces Mental Health Survey (CFMHS), of which 1820 respondents had deployed only once in their military careers-all in support of the mission in Afghanistan. The primary outcomes were past 12-month depression and past 12-month PTSD. Multivariate logistic regression was performed for each outcome variable, looking primarily for differences in the marginal effect of deployment-related trauma in those with and without a pre-deployment history of each disorder.

resultsA history of each pre-deployment disorder did indeed interact with deployment-related trauma with respect to the corresponding past 12-month disorder. In addition, pre-deployment history of depression and of PTSD interacted with each other, though only for the outcome of past 12-month PTSD. The average marginal effect of deployment-related trauma on past 12-month PTSD was highest in those with a pre-deployment history of depression in the absence of a pre-deployment history of PTSD. This group was twice as vulnerable to post-deployment PTSD relative to those without a pre-deployment history of both disorders and four times as vulnerable to post-deployment PTSD relative to those with a pre-deployment history of both disorders. No significant differences were seen in the marginal effects of trauma on past 12-month depression in the presence or absence of a pre-deployment history of that disorder.

conclusionThere is modest differential vulnerability to past 12-month PTSD as a function of deployment-related trauma in those who had a pre-deployment history of PTSD or depression when compared to those who did and did not have a pre-deployment history of one or both disorders.

Indexed as

Afghan Campaign 2001-AdolescentAdultCanadaCross-Sectional StudiesFemaleHumansMaleMental DisordersMiddle AgedMilitary PersonnelStress Disorders, Post-TraumaticSurveys and QuestionnairesYoung AdultLogistic modelsMajor depressive disorderMilitary personnelPost-traumatic stress disorderProbabilityPsychological trauma

Identifiers

PMID31117963
PMCPMC6532170

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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.