Prevalence and Risk Factors for Depressive Reaction among Resident Survivors after the Tsunami following the Great East Japan Earthquake, March 11, 2011

Matsubara, Chieko; Murakami, Hitoshi; Imai, Katsuyuki; Mizoue, Tetsuya; Akashi, Hidechika; Miyoshi, Chiaki; Nakasa, Tamotsu

doi:10.1371/journal.pone.0109240

Cited by 33 publications

(37 citation statements)

References 28 publications

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“…The present study revealed the highest OR for insomnia in middle-aged participants (50s), which differs from that reported by previous studies, which showed that the highest prevalence of insomnia was in elderly people, majorly cause by aging. Although specific reasons for the highest prevalence of insomnia in the middle-aged group were not determined in this study, previous studies indicated that the psychological stress and depressive reactions among the disaster victims after GEJE was distinctly observed in the middle-aged group (Koyama et al 2014;Matsubara et al 2014). Evident from the delayed increase of suicide rates in middle-aged GEJE victims in the disaster-affected areas (Orui et al 2015), continuous and intensive healthcare services are worth considering in support of these people.…”

Section: Discussionmentioning

confidence: 74%

Periodontal Disease Is Associated with Insomnia among Victims of the Great East Japan Earthquake: A Panel Study Initiated Three Months after the Disaster

Tsuchiya

Aida

Hagiwara

et al. 2015

Tohoku J. Exp. Med.

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In March 2011, the Great East Japan Earthquake (GEJE), which was followed by a devastating tsunami, destroyed the societal and the public hygiene systems in Japanese coastal areas. Insomnia, the greatest issue among disaster victims, has detrimental effects on both physical and psychological health. Periodontitis causes chronic discomfort and inflammation, and little is known about its impact on insomnia. Three months after the earthquake, a health panel survey was conducted over four surveys, till September 2013, in which information regarding 8,015 adults was collected and used. In addition to the heath-related questionnaire, other variables including subjective symptoms of oral diseases were recorded, and the Athens Insomnia Scale was used to evaluate the severity of insomnia. The association between insomnia and periodontal disease was examined using multilevel logistic models on the panel data, after adjusting for sex, age, economic status, comorbidities, body mass index, post-traumatic stress reactions, habitual smoking and alcohol drinking, and the Kessler Psychological Distress Scale score. In addition to the higher prevalence of insomnia among GEJE victims, significant association was revealed between insomnia and gum problems (OR = 2.16, 95% CI = 1.43-3.26), and difficulty chewing (OR = 2.22, 95% CI = 1.40-3.51), after adjusting for all covariates. The present study revealed significant association between insomnia and periodontal disease among GEJE victims. This indicated that together, integrated oral health care for disaster victims would contribute not only to prevention of oral infectious diseases, but may also help alleviate other problems caused by these harmful events.

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Section: Discussionmentioning

confidence: 74%

Periodontal Disease Is Associated with Insomnia among Victims of the Great East Japan Earthquake: A Panel Study Initiated Three Months after the Disaster

Tsuchiya

Aida

Hagiwara

et al. 2015

Tohoku J. Exp. Med.

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“…The country has been repeatedly affected by various types of major natural disasters, including typhoons, flooding, landslides, earthquakes, and volcano eruptions. Part of the population has thus experienced natural disasters, and mental health has been a major topic in post-disaster studies (Matsubara et al 2014;Nakamura et al 2014;Hikichi et al 2016;Tsuchiya et al 2017). The aim of the present study was to assess whether the effects of social capital on mental health could differ between those who had previously experienced disasters and those who had not.…”

Section: Introductionmentioning

confidence: 97%

“…Cognitive social capital is consistently suggested to exert protective effect on post-disaster mental health (Hikichi et al 2016;Tsuchiya et al 2017). However, the findings for structural social capital are rather inconsistent: while this component is protective in some settings (Matsubara et al 2014;Nakamura et al 2014), it may impair mental health in other settings (Wind et al 2011). Several hypotheses for this phenomenon have been proposed, such as contagion of effect and inverse relationships (Wind et al 2011;Noel et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Beneficial Roles of Social Support for Mental Health Vary in the Japanese Population depending on Disaster Experience: A Nationwide Cross-Sectional Study

Ozaki

Horiuchi

Kobayashi

et al. 2018

Tohoku J. Exp. Med.

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The purpose of the present study was to assess the effects of social capital on mental health among the Japanese population with or without natural disaster experience. A nationwide cross-sectional study was performed in the population aged 15 to 79 years old. We collected data on psychological status, social capital, disaster experience in ten years prior to the survey, and socio-demographic information. We assessed cognitive social capital (perceptions of support, reciprocity and trust), social support (support from individuals in the community), and social participation (participation in social activities) as components of social capital. The study outcome was mild mood or anxiety disorder (hereafter mood/anxiety disorder), defined as the score of 5 or higher in the Kessler Psychological Distress Scale (K6). Using logistic regression models, we tested whether each component of social capital was associated with mood/anxiety disorder with or without disaster experience. Out of 1,200 participants, 1,183 had available K6 score data and were considered. Among three components of social capital, only social support significantly interacted with disaster experience (p = 0.019). In the population without disaster experience, those with high social support were less likely to have mood/anxiety disorder (OR 0.45, 95% Cl 0.28-0.73); however, no such association was observed among those with disaster experience (OR 1.11, 95% CI 0.64-1.90). Thus, the protective effects of social support against mood/anxiety disorder vary in the Japanese population depending on disaster experience. The present study provides important insight into the role of social capital on mental health after natural disaster.

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“…1 The experience of disaster presents a significant burden on the mental health of survivors. [2][3][4] Depression in older adults is strongly associated with being house-bound, 5 which may lead to a decline in physical and cognitive function and eventually to premature death. 6 To clarify the factors that contribute to mental health recovery after a disaster, several postdisaster surveys have been previously conducted.…”

Section: Introductionmentioning

confidence: 99%

Reducing depressive symptoms after the Great East Japan Earthquake in older survivors through group exercise participation and regular walking: a prospective observational study

et al. 2017

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ObjectivesSurvivors of the 2011 Great East Japan Earthquake have an increased risk of depressive symptoms. We sought to examine whether participation in group exercise and regular walking could mitigate the worsening of depressive symptoms among older survivors.DesignProspective observational study.SettingOur baseline survey was conducted in August 2010, ∼7 months prior to the Great East Japan Earthquake and tsunami, among people aged 65 or older residing in Iwanuma City, Japan, which suffered significant damage in the disaster. A 3-year follow-up survey was conducted in 2013.Participants3567 older survivors responded to the questionnaires predisaster and postdisaster.Primary outcome measuresChange in depressive symptoms was assessed using the 15-item Geriatric Depression Scale (GDS).ResultsFrom predisaster to postdisaster, the mean change in GDS score increased by 0.1 point (95% CI −0.003 to 0.207). During the same interval, the frequency of group exercise participation and daily walking time also increased by 1.9 days/year and 1.3 min/day, respectively. After adjusting for all covariates, including personal experiences of disaster, we found that increases in the frequency of group exercise participation (B=−0.139, β=−0.049, p=0.003) and daily walking time (B=−0.087, β=−0.034, p=0.054) were associated with lower GDS scores. Interactions between housing damage and changes in group exercise participation (B=0.103, β=0.034, p=0.063) and changes in walking habit (B=0.095, β=0.033, p=0.070) were marginally significant, meaning that the protective effects tended to be attenuated among survivors reporting more extensive housing damage.ConclusionsParticipation in group exercises or regular walking may mitigate the worsening of depressive symptoms among older survivors who have experienced natural disaster.

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Prevalence and Risk Factors for Depressive Reaction among Resident Survivors after the Tsunami following the Great East Japan Earthquake, March 11, 2011

Cited by 33 publications

References 28 publications

Periodontal Disease Is Associated with Insomnia among Victims of the Great East Japan Earthquake: A Panel Study Initiated Three Months after the Disaster

Periodontal Disease Is Associated with Insomnia among Victims of the Great East Japan Earthquake: A Panel Study Initiated Three Months after the Disaster

Beneficial Roles of Social Support for Mental Health Vary in the Japanese Population depending on Disaster Experience: A Nationwide Cross-Sectional Study

Reducing depressive symptoms after the Great East Japan Earthquake in older survivors through group exercise participation and regular walking: a prospective observational study

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