Aida, J;
Hikichi, H;
Matsuyama, Y;
Sato, Y;
Tsuboya, T;
Tabuchi, T;
Koyama, S;
... Kawachi, I; + view all
(2017)
Risk of mortality during and after the 2011 Great East Japan Earthquake and Tsunami among older coastal residents.
Scientific Reports
, 7
(1)
, Article 16591. 10.1038/s41598-017-16636-3.
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Abstract
The Japan Gerontological Evaluation Study is a nationwide cohort study of individuals aged 65 years and older established in July 2010. Seven months later, one of the study field sites was directly in the line of the 2011 Great East Japan Earthquake and Tsunami. Despite the 1-hour warning interval between the earthquake and tsunami, many coastal residents lost their lives. We analyzed the risk of all-cause mortality on the day of the disaster as well as in the 38-month interval after the disaster. Among 860 participants, 33 (3.8%) died directly because of the tsunami and an additional 95 people died during the 38-month follow-up period. Individuals with depressive symptoms had elevated risk of mortality on the day of the disaster (odds ratio = 3.90 [95% CI: 1.13, 13.47]). More socially connected people also suffered increased risk of mortality, although these estimates were not statistically significant. In contrast, after the disaster, frequent social interactions reverted back to predicting improved survival (hazard ratio = 0.46 (95% CI: 0.26, 0.82)). Depressive symptoms and stronger social connectedness were associated with increased risk of mortality on the day of the disaster. After the disaster, social interactions were linked to improved survival.
| Type: | Article |
|---|---|
| Title: | Risk of mortality during and after the 2011 Great East Japan Earthquake and Tsunami among older coastal residents |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1038/s41598-017-16636-3 |
| Publisher version: | http://doi.org/10.1038/s41598-017-16636-3 |
| Language: | English |
| Additional information: | Copyright © 2017 The Author(s). Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
| Keywords: | Planetary science, Risk factors |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10040504 |
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