post-traumatic resilience after compound disater in Fukushima

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K10647
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 58030:Hygiene and public health-related: excluding laboratory approach
• Research Institution: Fukushima Medical University
• Principal Investigator: Ohto Hitoshi 福島県立医科大学, 医学部, 教授 (20150279)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: 複合災害 / 原子力発電所事故 / レジリエンス

Outline of Final Research Achievements

12 years have passed since the 2011 compound disaster. To reveal the trajectory process of resilience acquisition among affected populations, 400 evacuees, comparing 1200 control habitants in Fukushima Prefecture, were studied. 695 responded to the questionnaires. The newly developed scale consisted of a 4-factor structure: coping with stigma-related issues, sharing experiences of the disaster, action-oriented approach, and sense of support. Internal consistency coefficients ranged from 0.66 to 0.79. The multivariable logistic regression analysis showed the significant association was between action-oriented approach and respondents with a K6 score <5 points. The reliability and concurrent validity of the new developed scale in residents of the evacuation area of Fukushima Prefecture were acceptable. A significant association was found between action-oriented approach and good mental health among the evacuees, which suggests that this improves resilience among the affected.

Free Research Field

災害医学

Academic Significance and Societal Importance of the Research Achievements

2011年複合災害からのレジリエンス獲得軌跡が明らかになった。避難住民、福島県内住民計1600名に実施したアンケート調査から「放射線リスク不安」と「差別不安」の2説明因子を同定した。psychological distress経路を介して放射線関連不安を改善するモデルが良く適合した。災害受容感、レジャー活動、社会活動への参加はレジリエンス回復を促進し、レジリエンスは放射線不安と差別感を軽減した。精神状態が改善すると前向きな情報を取り入れ、社会に関心が向かい、地域活動への参加が増加する。この成果は自治体と政策遂行に役立つものと思われる。