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Postdisaster Changes in Social Capital and Mental Health: A Natural Experiment From the 2016 Kumamoto Earthquake

Levels of social capital can change after a natural disaster; thus far, no study has examined how changes in social capital affect the mental health of disaster victims. In this study, we examined how predisaster social capital and its changes after a disaster were associated with the onset of menta...

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Autores principales: Sato, Koryu, Amemiya, Airi, Haseda, Maho, Takagi, Daisuke, Kanamori, Mariko, Kondo, Katsunori, Kondo, Naoki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7443763/
https://www.ncbi.nlm.nih.gov/pubmed/32232321
http://dx.doi.org/10.1093/aje/kwaa041
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author Sato, Koryu
Amemiya, Airi
Haseda, Maho
Takagi, Daisuke
Kanamori, Mariko
Kondo, Katsunori
Kondo, Naoki
author_facet Sato, Koryu
Amemiya, Airi
Haseda, Maho
Takagi, Daisuke
Kanamori, Mariko
Kondo, Katsunori
Kondo, Naoki
author_sort Sato, Koryu
collection PubMed
description Levels of social capital can change after a natural disaster; thus far, no study has examined how changes in social capital affect the mental health of disaster victims. In this study, we examined how predisaster social capital and its changes after a disaster were associated with the onset of mental disorders. In October 2013, we mailed a questionnaire to participants in the Japan Gerontological Evaluation Study living in Mifune, a town in Kumamoto Prefecture, Japan, and measured predisaster social capital. In April 2016, the Kumamoto earthquake struck the region. Three years after the baseline survey, postdisaster social capital and symptoms of mental disorders were measured using the Screening Questionnaire for Disaster Mental Health (n = 828). Multiple Poisson regression indicated that a 1-standard-deviation change in predisaster social cohesion at the community level reduced the risk of depression among women (relative risk = 0.44, 95% confidence interval: 0.24, 0.78); a decline in social capital after the disaster elevated the risk (relative risk = 2.44, 95% confidence interval: 1.33, 4.47). In contrast to social cohesion, high levels of social participation at the community level were positively associated with the risk of depression among women. Policy-makers should pay attention to sex differences and types of social capital when leveraging social capital for recovery from disasters.
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spelling pubmed-74437632020-08-26 Postdisaster Changes in Social Capital and Mental Health: A Natural Experiment From the 2016 Kumamoto Earthquake Sato, Koryu Amemiya, Airi Haseda, Maho Takagi, Daisuke Kanamori, Mariko Kondo, Katsunori Kondo, Naoki Am J Epidemiol Original Contribution Levels of social capital can change after a natural disaster; thus far, no study has examined how changes in social capital affect the mental health of disaster victims. In this study, we examined how predisaster social capital and its changes after a disaster were associated with the onset of mental disorders. In October 2013, we mailed a questionnaire to participants in the Japan Gerontological Evaluation Study living in Mifune, a town in Kumamoto Prefecture, Japan, and measured predisaster social capital. In April 2016, the Kumamoto earthquake struck the region. Three years after the baseline survey, postdisaster social capital and symptoms of mental disorders were measured using the Screening Questionnaire for Disaster Mental Health (n = 828). Multiple Poisson regression indicated that a 1-standard-deviation change in predisaster social cohesion at the community level reduced the risk of depression among women (relative risk = 0.44, 95% confidence interval: 0.24, 0.78); a decline in social capital after the disaster elevated the risk (relative risk = 2.44, 95% confidence interval: 1.33, 4.47). In contrast to social cohesion, high levels of social participation at the community level were positively associated with the risk of depression among women. Policy-makers should pay attention to sex differences and types of social capital when leveraging social capital for recovery from disasters. Oxford University Press 2020-09 2020-03-30 /pmc/articles/PMC7443763/ /pubmed/32232321 http://dx.doi.org/10.1093/aje/kwaa041 Text en © The Author(s) 2020. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Original Contribution
Sato, Koryu
Amemiya, Airi
Haseda, Maho
Takagi, Daisuke
Kanamori, Mariko
Kondo, Katsunori
Kondo, Naoki
Postdisaster Changes in Social Capital and Mental Health: A Natural Experiment From the 2016 Kumamoto Earthquake
title Postdisaster Changes in Social Capital and Mental Health: A Natural Experiment From the 2016 Kumamoto Earthquake
title_full Postdisaster Changes in Social Capital and Mental Health: A Natural Experiment From the 2016 Kumamoto Earthquake
title_fullStr Postdisaster Changes in Social Capital and Mental Health: A Natural Experiment From the 2016 Kumamoto Earthquake
title_full_unstemmed Postdisaster Changes in Social Capital and Mental Health: A Natural Experiment From the 2016 Kumamoto Earthquake
title_short Postdisaster Changes in Social Capital and Mental Health: A Natural Experiment From the 2016 Kumamoto Earthquake
title_sort postdisaster changes in social capital and mental health: a natural experiment from the 2016 kumamoto earthquake
topic Original Contribution
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7443763/
https://www.ncbi.nlm.nih.gov/pubmed/32232321
http://dx.doi.org/10.1093/aje/kwaa041
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