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BMC Psychiatry
Published in: BMC Psychiatry 1/2015

Open Access 01-12-2015 | Research article

Post-traumatic stress disorder and depression prevalence and associated risk factors among local disaster relief and reconstruction workers fourteen months after the Great East Japan Earthquake: a cross-sectional study

Authors: Atsushi Sakuma, Yoko Takahashi, Ikki Ueda, Hirotoshi Sato, Masahiro Katsura, Mikika Abe, Ayami Nagao, Yuriko Suzuki, Masako Kakizaki, Ichiro Tsuji, Hiroo Matsuoka, Kazunori Matsumoto

Published in: BMC Psychiatry | Issue 1/2015

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Abstract

Background

Many local workers have been involved in rescue and reconstruction duties since the Great East Japan Earthquake (GEJE) on March 11, 2011. These workers continuously confront diverse stressors as both survivors and relief and reconstruction workers. However, little is known about the psychological sequelae among these workers. Thus, we assessed the prevalence of and personal/workplace risk factors for probable post-traumatic stress disorder (PTSD), probable depression, and high general psychological distress in this population.

Methods

Participants (N = 1294; overall response rate, 82.9%) were workers (firefighters, n = 327; local municipality workers, n = 610; hospital medical workers, n = 357) in coastal areas of Miyagi prefecture. The study was cross-sectional and conducted 14 months after the GEJE using a self-administered questionnaire which included the PTSD Checklist–Specific Version, the Patient Health Questionnaire-9, and the K6 scale. Significant risk factors from bivariate analysis, such as displacement, dead or missing family member(s), near-death experience, disaster related work, lack of communication, and lack of rest were considered potential factors in probable PTSD, probable depression, and high general psychological distress, and were entered into the multivariable logistic regression model.

Results

The prevalence of probable PTSD, probable depression, and high general psychological distress was higher among municipality (6.6%, 15.9%, and 14.9%, respectively) and medical (6.6%, 14.3%, and 14.5%, respectively) workers than among firefighters (1.6%, 3.8%, and 2.6%, respectively). Lack of rest was associated with increased risk of PTSD and depression in municipality and medical workers; lack of communication was linked to increased PTSD risk in medical workers and depression in municipality and medical workers; and involvement in disaster-related work was associated with increased PTSD and depression risk in municipality workers.

Conclusions

The present results indicate that at 14 months after the GEJE, mental health consequences differed between occupations. High preparedness, early mental health interventions, and the return of ordinary working conditions might have contributed to the relative mental health resilience of the firefighters. Unlike the direct effects of disasters, workplace risk factors can be modified after disasters; thus, we should develop countermeasures to improve the working conditions of local disaster relief and reconstruction workers.
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Metadata
Title
Post-traumatic stress disorder and depression prevalence and associated risk factors among local disaster relief and reconstruction workers fourteen months after the Great East Japan Earthquake: a cross-sectional study
Authors
Atsushi Sakuma
Yoko Takahashi
Ikki Ueda
Hirotoshi Sato
Masahiro Katsura
Mikika Abe
Ayami Nagao
Yuriko Suzuki
Masako Kakizaki
Ichiro Tsuji
Hiroo Matsuoka
Kazunori Matsumoto
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Psychiatry / Issue 1/2015
Electronic ISSN: 1471-244X
DOI
https://doi.org/10.1186/s12888-015-0440-y

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