Evidence map›Paper›PMID 39046737›Full record

ArticleJAMA network open2024

Symptoms of Posttraumatic Stress Disorder Among Japanese Peacekeepers Deployed in South Sudan.

Masato Kitano, Erik J Giltay, Taku Saito, Florentine H S van der Does, Toshinori Chiba, Eric Vermetten, Naoki Edo, Fumiko Waki, Minori Koga, Hiroyuki Toda and 2 more

Abstract read
In one paragraph

Article in JAMA network open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

12 authors.

Masato KitanoDivision of Behavioral Science, National Defense Medical College Research Institute, Saitama, Japan.
Erik J GiltayDepartment of Psychiatry, Leiden University Medical Center, Leiden, the Netherlands.
Taku SaitoDivision of Behavioral Science, National Defense Medical College Research Institute, Saitama, Japan.
Florentine H S van der DoesDepartment of Psychiatry, Leiden University Medical Center, Leiden, the Netherlands.
Toshinori ChibaDepartment of Psychiatry, Japan Self-Defense Force Hanshin Hospital, Kawanishi, Japan.
Eric VermettenDepartment of Psychiatry, Leiden University Medical Center, Leiden, the Netherlands.
Naoki EdoDivision of Behavioral Science, National Defense Medical College Research Institute, Saitama, Japan.
Fumiko WakiDivision of Behavioral Science, National Defense Medical College Research Institute, Saitama, Japan.
Minori KogaDepartment of Psychiatry, National Defense Medical College, Saitama, Japan.
Hiroyuki TodaDepartment of Psychiatry, National Defense Medical College, Saitama, Japan.
Nic J van der WeeDepartment of Psychiatry, Leiden University Medical Center, Leiden, the Netherlands.
Masanori NagamineDivision of Behavioral Science, National Defense Medical College Research Institute, Saitama, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Importance: Peacekeepers in United Nations missions experience potentially traumatic events, resulting in increased risk for posttraumatic stress disorder (PTSD). Understanding the course and risk factors of PTSD symptom severity is crucial to ensure personnel safety. Objective: To investigate the incidence of PTSD, symptom severity trajectories, and potential risk factors associated with adverse trajectories among Japanese peacekeepers deployed in South Sudan. Design, Setting, and Participants: Data for this 6-year prospective cohort study were collected from December 2011 to December 2018 from Japan Ground Self-Defense Force personnel deployed at the United Nations Mission in South Sudan, corresponding to before and up to 78 months after deployment. Of 3799 potential participants, 80 were excluded because of multiple deployments and 757 because of missing data, incomplete responses, or not providing informed consent. Therefore, 2962 participants were included in the analysis. Data analysis was performed from February 2022 to February 2024. Exposure: The participants were deployed to United Nations Mission in South Sudan for 6 months. Main Outcomes and Measures: The 22-item Impact of Event Scale-Revised was used to assess PTSD symptoms, with 25 or more points indicating probable PTSD (p-PTSD). Sociodemographic data were collected, and the 30-item General Health Questionnaire was administered before deployment to identify risk factors for PTSD symptom severity. Results: In the 2962 participants studied (2901 [97.9%] male; mean [SD] age, 33.9 [7.2] years), the incidence of p-PTSD was 3.95%. Latent growth mixture models identified 4 symptom severity trajectories: resilient (2143 [72.3%]), recovery (479 [16.2%]), protracted (182 [6.1%]), and delayed (158 [5.3%]). Multinomial logistic regression showed that sleep disturbance was a common risk factor for the 2 most severe trajectories (protracted: odds ratio [OR], 1.29; 95% CI, 1.08-1.54; delayed: OR, 1.26; 95% CI, 1.03-1.53), whereas older age (OR, 1.25; 95% CI, 1.06-1.48), anxiety and dysphoria (OR, 1.45; 95% CI, 1.20-1.75), and general illness (OR, 1.30; 95% CI, 1.06-1.59) were associated with the protracted trajectory. Conclusions and Relevance: This cohort study found that approximately 4% of the participants developed p-PTSD and identified 4 distinct PTSD symptom trajectories. The findings suggest that addressing sleep disturbance and general health issues could effectively prevent PTSD symptoms among peacekeepers.

Indexed as

Stress Disorders, Post-TraumaticAdultEast Asian PeopleFemaleHumansIncidenceJapanMaleMilitary DeploymentMilitary PersonnelProspective StudiesRisk FactorsSeverity of Illness IndexSouth Sudan

Identifiers

PMID39046737
PMCPMC11270132

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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.