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Identifying factors associated with mental health status following climate-related disasters: a nationwide longitudinal panel study in Korea
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Eunjin Oh, Jaelim Cho, Changsoo Kim, Hyungryul Lim, Kyoung-Nam Kim
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Epidemiol Health. 2025;47:e2025014. Published online March 27, 2025
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DOI: https://doi.org/10.4178/epih.e2025014
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 Abstract
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Abstract
OBJECTIVES
Despite the increasing frequency and intensity of climate-related disasters, identifying factors associated with mental health status remains challenging. This study aimed to determine the factors linked to symptoms of depression, anxiety, and post-traumatic stress disorder (PTSD) following heavy rainfall and typhoons.
METHODS National data on climate-related disaster victims (n=825 for heavy rainfall and n=1,220 for typhoon) from a longitudinal panel in Korea (“Long-term Survey on the Change of Life of Disaster Victims”) and data from individuals unaffected by disasters (n=893) were used. Generalized linear mixed models were employed to evaluate the factors associated with mental health status following climate-related disasters.
RESULTS Greater disaster severity (e.g., experiencing casualties or asset loss) was associated with higher scores for depression (Patient Health Questionnaire-9), anxiety (Generalized Anxiety Disorder-7), and PTSD (Impact Event Scale-Revised). The association between casualty experience and anxiety score was more pronounced among individuals over 65 years (β [log-transformed score], 1.39; standard error [SE], 0.26; p<0.001), female respondents (β, 1.20; SE, 0.20; p<0.001), those with a low education level (β, 1.18; SE, 0.25; p<0.001), and those with a low income (β, 1.45; SE, 0.26; p<0.001) compared to their counterparts.
CONCLUSIONS These findings may help guide targeted interventions and shape public health policies and disaster management strategies that prioritize mental health support for the most at-risk populations, ultimately increasing community resilience to climate-related challenges.
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Summary
Korean summary
본 연구는 기후 관련 재난 후 우울증, 불안, PTSD와 관련된 요인을 파악하였다. 재난의 심각도가 클수록 정신 건강 악화는 더 심각하였으며 특히 노인, 여성, 낮은 교육 수준과 소득을 가진 취약한 그룹이 더 큰 위험에 처해 있었다. 이 결과는 향후 재난 대응에서 이러한 인구집단을 지원하기 위한 맞춤형 정신 건강 개입과 정책의 필요성을 시사한다.
Key Message
We identified factors associated with depression, anxiety, and PTSD following climate-related disasters, highlighting that greater disaster severity correlates with worse mental health outcomes. Vulnerable groups, such as older adults, women, those with lower education and income, are at higher risk. The findings suggest the need for targeted mental health interventions and policies to support these populations in future disaster responses.
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