ArticleBMC public health2025
Influence of housing damage caused by the Great East Japan Earthquake on the association between new social isolation and depressive symptoms during the COVID-19 pandemic: findings from the Tohoku Medical Megabank Community-Based Cohort Study.
Article in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundIt is unclear whether past disaster experience, specifically housing damage caused by the Great East Japan Earthquake (GEJE), influenced the association between social isolation and depressive symptoms during the coronavirus disease 2019 (COVID-19) pandemic. Therefore, we aimed to examine the association between new social isolation and depressive symptoms during the COVID-19 pandemic and whether this association was influenced by past disaster experience.
methodsWe analyzed the longitudinal data of 8,647 individuals, excluding those who reported social isolation before COVID-19. The presence of social isolation and depressive symptoms were defined using the Lubben Social Network Scale-6 (LSNS-6) score < 12 and the Center for Epidemiological Studies-Depressive Scale (CES-D) score ≥ 16, respectively. Pre-COVID-19 survey was conducted between June 2017 and February 2020, and COVID-19 survey was conducted between November 2020 and March 2021. Participants were categorized into "not socially isolated" and "newly socially isolated" groups. Logistic regression analyses were performed to calculate the multivariable-adjusted odds ratio (AOR) with 95% confidence interval (CI) for depressive symptoms, comparing both groups.
resultsParticipants who were newly socially isolated during the COVID-19 pandemic had a significantly higher prevalence of depressive symptoms than those who were not socially isolated in both men and women (men: AOR 1.53 [CI: 1.15-2.02]; women: AOR 1.96 [CI: 1.64-2.34]). However, past disaster experience did not affect this association in both men and women.
conclusionsTo reduce depressive symptoms during a major infectious disease pandemic such as the COVID-19 pandemic, it is important to adopt a public health perspective to prevent social isolation.
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