High-level Post-traumatic Stress Symptoms of the Residents in Fukushima Temporary Housing : Bio-psycho-social Impacts by Nuclear Power Plant Disaster

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  • Tsujiuchi Takuya
    Faculty of Human Sciences, Waseda University Waseda Institute of Medical Anthropology on Disaster Reconstruction
  • Komaki Kumiko
    Graduate School of Human Sciences, Waseda University
  • Iwagaki Takahiro
    Graduate School of Human Sciences, Waseda University
  • Masuda Kazutaka
    Waseda Institute of Medical Anthropology on Disaster Reconstruction Department of Social Welfare, The International University of Kagoshima
  • Yamaguchi Maya
    Graduate School of Human Sciences, Waseda University
  • Fukuda Chikako
    Graduate School of Human Sciences, Waseda University
  • Ishikawa Noriko
    Graduate School of Human Sciences, Waseda University
  • Mochida Ryuhei
    Graduate School of Human Sciences, Waseda University
  • Kojima Takaya
    Faculty of Human Sciences, Waseda University Waseda Institute of Medical Anthropology on Disaster Reconstruction
  • Negayama Koichi
    Faculty of Human Sciences, Waseda University Waseda Institute of Medical Anthropology on Disaster Reconstruction
  • Ogihara Atsushi
    Faculty of Human Sciences, Waseda University Waseda Institute of Medical Anthropology on Disaster Reconstruction
  • Kumano Hiroaki
    Faculty of Human Sciences, Waseda University Waseda Institute of Medical Anthropology on Disaster Reconstruction

Bibliographic Information

Other Title
  • 福島県内仮設住宅居住者にみられる高い心的外傷後ストレス症状
  • 福島県内仮設住宅居住者にみられる高い心的外傷後ストレス症状 : 原子力発電所事故がもたらした身体・心理・社会的影響
  • フクシマ ケンナイ カセツ ジュウタク キョジュウシャ ニ ミラレル タカイ シンテキ ガイショウ ゴ ストレス ショウジョウ : ゲンシリョク ハツデンショ ジコ ガ モタラシタ シンタイ ・ シンリ ・ シャカイテキ エイキョウ
  • —原子力発電所事故がもたらした身体・心理・社会的影響—

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Abstract

Backgrounds : Fukushima nuclear power plant disaster occurred following the Great East Japan Earthquake on March 11, 2011. It bears comparison with the incident in Chernobyl in 1986 in the degree of radiological contamination to the surrounding environment. 164,218 residents were displaced losing their home-land by this serious incident, of which 97,321 were relocated to other regions within the Fukushima prefecture, and 57,135 residents were relocated to other prefectures. The evacuees from Fukushima can be considered the largest number of ‘internally displaced persons’ or ‘domestic refugees’ in Japan after the world war two. Objective : This study investigated the scale of post-traumatic stress (PTS) symptoms in the evacuees as of two years after the Fukushima nuclear power plant disaster. It also tried to identify the impact of bio-psycho-social factors related to PTS symptoms. Samples and methods : Questionnaire survey was conducted by Waseda University and Japan Broadcasting Corporation (NHK). 2,425 households living at temporary housings within Fukushima prefecture were asked to answer the Impact of Event Scale-Revised (IES-R) and the self-report questionnaires that we generated in order to evaluate the damage by the disaster in relation to several bio-psycho-social factors in refugee lives. There were 745 replies (the cooperation rate ; 30.7%), of which 661 were analyzed. Besides, multiple logistic regression analysis was performed to examine several bio-psycho-social factors as predictors for probable PTSD. Results : High level PTS symptoms were found. The mean score of IES-R was 34.20±20.56, and 62.56% were over 24/25 cut-off point determined as broadly defined PTSD which means high-risk presence of probable PTSD. The significant differences by chi-square test of high-risk subjects were found among economic difficulty (p=.000), concerns about compensation (p=.000), lost jobs (p=.023), unsatisfying housing (p=.025), unsatisfying environment around temporary housing (p=.000), having chronic disease (p=.003), aggravation of chronic disease (p=.000), affection of new disease (p=.000), lack of necessary information (p=.000), family split-up (p=.031), and lack of acquaintance support (p=.000). By the result of multiple logistic regression analysis, the significant predictors of probable PTSD were economic difficulty (OR : 2.34, 95%CI : 1.30-4.24), concerns about compensation (OR : 4.16, 95%CI 1.26-13.76), aggravation of chronic disease (OR : 2.94, 95%CI : 1.63-5.30), affection of new disease (OR : 2.20, 95%CI : 1.21-3.99), and lack of acquaintance support (OR : 1.92, 95%CI : 1.07-3.42). Conclusion : The findings revealed that there is a high-risk presence of probable PTSD strongly related to a number of bio-psycho-social factors due to the nuclear power plant disaster and its consequent evacuation. Our findings underscore the specific characteristics of the nuclear disaster as man-made disaster. Since the socio-economic problems such as compensation and reparation have not been solved, it is suggested that prolonged uncertainty regarding the insufficient salvation of the evacuees might account for the high-level PTS symptoms.

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