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

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.

Breast cancer patient delay in Fukushima, Japan following the 2011 triple disaster: a long-term retrospective study.

BACKGROUND: Little information is available concerning how patient delay may be affected by mass disasters. The main objectives of the present study are to identify whether there was a post-disaster increase in the risk of experiencing patient delay among breast cancer patients in an area affected by the 2011 triple disaster in Fukushima, Japan, and to elucidate factors associated with post-disaster patient delay. Sociodemographic factors (age, employment status, cohabitant status and evacuation status), health characteristics, and health access- and disaster-related factors were specifically considered. METHODS: Records of symptomatic breast cancer patients diagnosed from 2005 to 2016 were retrospectively reviewed to calculate risk ratios (RRs) for patient delay in every year post-disaster compared with the pre-disaster baseline. Total and excessive patient delays were respectively defined as three months or more and twelve months or more from symptom recognition to first medical consultation. Logistic regression analysis was conducted for pre- and post-disaster patient delay in order to reveal any factors potentially associated with patient delay, and changes after the disaster. RESULTS: Two hundred nineteen breast cancer patients (122 pre-disaster and 97 post-disaster) were included. After adjustments for age, significant post-disaster increases in RRs of experiencing both total (RR: 1.66, 95% Confidence Interval (CI): 1.02-2.70, p < 0.05) and excessive patient delay (RR: 4.49, 95% CI: 1.73-11.65, p < 0.01) were observed. The RRs for total patient delay peaked in the fourth year post-disaster, and significant increases in the risk of excessive patient delay were observed in the second, fourth, and fifth years post-disaster, with more than five times the risk observed pre-disaster. A family history of any cancer was the only factor significantly associated with total patient delay post-disaster (odds ratio: 0.38, 95% CI: 0.15-0.95, p < 0.05), while there were no variables associated with delay pre-disaster. CONCLUSIONS: The triple disaster in Fukushima appears to have led to an increased risk of patient delay among breast cancer patients, and this trend has continued for five years following the disaster.

Trends of Media Coverage on Human Papillomavirus Vaccination in Japanese Newspapers.

A sensational newspaper article concerning a possible adverse reaction to the human papillomavirus (HPV) vaccine was published in March 2013 in Japan. In June 2013, the Japanese government suspended their proactive recommendation for vaccination, despite the lack of proof for a causal relationship. We searched Nikkei Telecom 21, the largest newspaper database in Japan, for articles published from January 2011 to December 2015 to evaluate the characteristics of newspaper publications about human papillomavirus vaccination. We identified 1138 HPV vaccine-related articles. Compared with those published before March 2013, articles concerning human papillomavirus vaccination after March 2013 were more likely to include adverse reaction-related and authority-related keywords; articles that included efficacy-related keywords decreased significantly. Negative-negative and negative-neutral articles became more frequent, and positive-positive and positive-neutral articles were less frequent. A sensational case report shaped the tone of negative media coverage as a catalyst, regardless of scientific statements from health authorities.

Solutions to physician undersupply in rural areas: from the experience of rural Fukushima.

Key words: Fukushima nuclear accident, health care facilities, health education, Japan, manpower and services.

Public health implications of multiple disaster exposures.

Disasters are an important public health issue; however, there is scarce evidence to date on what happens when communities and populations experience more than one disaster. This scoping review identifies literature on the effects of multiple disasters published until Aug 2, 2021, 1425 articles were identified, of which 150 articles were included. We analysed direct and indirect public health implications of multiple disasters. Our analysis suggests that exposure to multiple disasters can affect mental health, physical health, and wellbeing, with some evidence that the potential risks of multiple disaster exposure exceed those of single disaster exposure. We also identified indirect public health implications of multiple disaster exposure, related to changes in health-care facilities, changes in public risk perception, and governmental responses to multiple disasters. We present findings on community recovery and methodological challenges to the study of multiple disasters, and directions for future research.

Comparative risk assessment of non-communicable diseases by evacuation scenario- a retrospective study in the 7 years following the Fukushima Daiichi nuclear power plant accident.

Background: As a result of the Fukushima Daiichi nuclear power plant accident, many residents evacuated and were exposed to changes in their living environment and socioeconomic status, and to persistent stressors. Past studies have suggested the potential for these circumstances to contribute to long-term changes to population health.Objective: The objective of this study was to gain a better understanding of long-term health effects of evacuation, by evaluating the risk of non-communicable diseases among evacuees from Minamisoma City (one of the closest municipalities to the power plant) until 2017.Methods: The study evaluated data from annual health check-ups for residents aged 40-74 years covered by National Health Insurance (who are largely self-employed) from 2010 to 2017 administered by Minamisoma City. Diabetes, hyperlipidemia, and hypertension were defined from the results of blood sampling. Annual changes in age-adjusted prevalence were estimated by evacuation scenario. We also performed an inverse-probability weighting (IPW) analysis to adjust for baseline covariates in 2010 and estimated the differences in the risk of diabetes, hyperlipidemia, and hypertension by evacuation scenario as of the 2017 health check-up in reference to the no-evacuation group.Results: A total of 1,837 individuals were considered in this study. Regardless of evacuation scenario, there was statistical evidence suggesting an upward and a downward trend in diabetes and hypertension from 2010 to 2017, respectively, while hyperlipidemia showed no remarkable change. IPW analyses demonstrated that disease risks in 2017 did not differ significantly among people with different evacuation scenarios.Conclusions: Region-specific factors played an important role in the health effects of the evacuation. Our findings have important implications for the need of an assessment of the health effects of evacuations in more localized manner. Further research in this area will strengthen the communities' preparedness for future disasters that require mass evacuation.

Breast Cancer Provider Interval Length in Fukushima, Japan, After the 2011 Triple Disaster: A Long-Term Retrospective Study.

BACKGROUND: Minimizing the interval from symptom onset to treatment commencement is essential for a favorable outcome among breast cancer (BC) patients. This study examined whether provider interval (time elapsed from first consultation to treatment initiation) lengthened among BC patients after Japan's 2011 earthquake, tsunami, and nuclear disaster in Fukushima. Factors associated with the length of postdisaster interval and whether the interval was associated with BC stage were also investigated. PATIENTS AND METHODS: So-so District (study site) was an area damaged by the 2011 disasters. Data of all BC patients who made their first medical consultation and received initial treatment at the core medical institutions in the area 5 years before or after the disaster were extracted from patient medical records. We used several regression approaches to fulfill our study objectives. RESULTS: We included 263 (140 predisaster and 123 postdisaster) patients. After adjustment for covariates, the interval did not significantly change after the disaster compared to before the disaster. Those with 4 or 5 cohabiting family members experienced a shorter interval after the disaster than those with 0 or 1 cohabiting family members (relative length, 0.47; 95% confidence interval, 0.28-0.78). Those with an interval of > 60 days had lower odds of stage III or IV cancer after the disaster than those with an interval of < 30 days (odds ratio, 0.09; 95% confidence interval, 0.01-0.84). CONCLUSION: Overall, provider interval did not lengthen after the disaster. However, those with fewer cohabiting family members might have experienced a longer total interval. Cancer stage may not necessarily reflect the influence of interval on patient outcome.

Premature Death of a Schizophrenic Patient due to Evacuation after a Nuclear Disaster in Fukushima.

Although psychiatric patients are likely to be adversely impacted by disasters, information regarding the processes involved in adverse impacts is limited. In March 2011, Japan experienced an earthquake, tsunami, and the Fukushima Daiichi Nuclear Power Plant accident. In its aftermath, Takano Hospital, 22 km south of the power plant, underwent forced patient evacuation. A 54-year-old Japanese male with schizophrenia, who had been hospitalized in the psychiatric ward for over 20 years, was transferred and experienced a series of hospital relocations. Although his physical status was intact when he left Takano Hospital, his condition gradually worsened, presumably due to incomplete exchange of patient information between institutions and changes in the treatment environment. Having developed ileus a few days prior, he was bedridden when he returned to Takano Hospital in May 2011. Over the course of treatment, he developed aspiration pneumonia and died in August 2011. A review of medical records revealed that all his purgative medicines had been stopped after his evacuation, possibly contributing to the development of ileus. This case highlights the necessity of establishing systems enabling patient information sharing between institutions in disaster settings and the importance of recognizing that long-term evacuation may have fatal impacts for psychiatric patients.

Internal exposure risk due to radiocesium and the consuming behaviour of local foodstuffs among pregnant women in Minamisoma City near the Fukushima nuclear power plant: a retrospective observational study.

OBJECTIVES: This study aimed to evaluate the internal cesium (Cs) level among pregnant women in Minamisoma City (the area straddling the evacuation zones) over a 5-year period after Japan's 2011 Fukushima nuclear accident and assess the status and transition of their food-acquiring preferences during this period. DESIGN: A retrospective observational study of a screening along with a questionnaire survey. SETTING: This study was conducted in an obstetrics and gynaecology service in Minamisoma City in Fukushima, Japan. PARTICIPANTS: Participants included pregnant women who applied for the voluntary internal radiation exposure screening programme. PRIMARY AND SECONDARY OUTCOME MEASURES: Internal radiation exposure was evaluated using the whole-body counter (WBC) in the screening programme. Data from a food acquisition preference questionnaire administered to the participants were analysed and compared across the 5-year period after adjusting for covariates. RESULTS: Overall, 804 screening programmes were conducted with 579 participants during the study period. All participants had internal contamination levels below the detection limit of the WBC unit (220 and 250 Bq/body for Cs-134 and Cs-137, respectively). Based on the most conservative assumption, their maximum annual effective doses by Cs-134 and Cs-137 together were estimated at 16 µSv/year. Contrary to limited internal contamination risks and counter-dose initiatives by the government, a considerable number of pregnant women were still concerned about consuming potentially contaminated local food products when purchasing them at supermarkets between 2012 (78.4%) and 2015 (75.0%). CONCLUSIONS: Health effects from post-accident internal radiation exposure were likely to be insignificant in pregnant women. National/local action is urgently needed to promote scientific understanding in pregnant women regarding limited internal exposure risks from local food products in the market. However, few mothers chose to participate in the internal radiation exposure screening programme, and thus, caution is required in interpreting the results of analyses.

Premature death associated with long-term evacuation among a vulnerable population after the Fukushima nuclear disaster: A case report.

RATIONALE: The health vulnerability of certain populations such as children, the elderly and individuals with illnesses or physical disability can become significant in disasters. After the 2011 Fukushima Daiichi Nuclear Power Plant (FDNPP) accident, significant health impacts on vulnerable populations were observed during early or mid-term phase of the disaster, presumably associated with the evacuation. However, there is limited information available on the health impacts owing to long-term evacuation after disaster among them. PATIENT CONCERNS: A 56-year-old physically challenged male with arteriovenous malformation on his right lower limb, diagnosed when he was 2 years' old, lived near the FDNPP. He and his family were forced to evacuate immediately after the accident. DIAGNOSIS: Three months after evacuation following the FDNPP accident, he developed a refractory foot ulcer associated with atrial fibrillation and congestive cardiac failure because of deterioration of arteriovenous malformation, presumably led by repeated evacuations. INTERVENTION: Although anticoagulation therapy and diuretic therapy improved his cardiac failure in the initial admission, he decided to only be treated with supportive care after revelation that his arteriovenous malformation was no longer eligible for aggressive intervention. OUTCOME: Three years after the long-term evacuation in temporary houses, the patient died of bleeding and infection of the ulcer. LESSONS: This case suggests that long-term evacuation for individuals with physical disability may lead to significant health impacts, and even premature death, through the deterioration of daily life activities due to physical and psychological burdens. This case presents a need for further research on ways that disasters impact the health of individuals with physical disabilities, and greater disaster preparation for the needs of populations with physical disabilities.

Long-term trends of hospital admissions among patients with cancer following the 2015 earthquake: a single institution observational study in Kathmandu, Nepal.

OBJECTIVES: Little is known regarding how natural disasters affect patients with cancer in low-income and middle-income countries. The objective of the present study was to assess the impact of the 2015 Nepal earthquake on the admission of patients with cancer at a core medical institution in Kathmandu. DESIGN, SETTING AND PARTICIPANTS: We considered all 3520 cancer patient admissions to Tribhuvan University Teaching Hospital, from 25 April 2013 to 24 April 2017 (2 years before and 2 years after the earthquake). OUTCOME MEASURES: The number of cancer patient admissions was calculated for each month. Using a negative binomial model, we estimated the incidence rate ratio (IRR) for admission numbers each month after the earthquake compared with the pre-earthquake baseline and investigated chronological change. RESULTS: The total admission number in the first month after the earthquake was decreased compared with that of the predisaster baseline (IRR=0.66, 95% CI 0.43 to 1.00), which largely reflected decreased admissions of patients from outside of the most disaster-affected districts. From the second month, the admission number consistently exceeded the predisaster baseline for the remaining postdisaster period. In contrast to the month of the disaster, the continuation of increased admissions was most prominent among those from outside of the most affected districts. CONCLUSIONS: After a transient decrease immediately following the 2015 Nepal earthquake, there was a long-term increase in cancer patient admissions in a core hospital in Kathmandu. These changes were seen most prominently in patients from outside the most disaster affected areas.

The Great East Japan Earthquake, Tsunamis, and Fukushima Daiichi Nuclear Power Plant Disaster: Lessons for Evidence Integration from a WADEM 2017 Presentation and Panel Discussion.

In April 2017, some of the health impacts of the 2011 Great East Japan Earthquake, tsunamis, and resultant Fukushima Daiichi nuclear power plant disaster (Okuma, Fukushima Prefecture, Japan) were presented at the 19th Congress of the World Association for Disaster and Emergency Medicine (WADEM; Madison, Wisconsin USA) in Toronto, Canada. A panel discussion was then opened by asking audience members about their experiences in their own countries, and how they would suggest taking steps to reach the goals of the Sendai Framework for Disaster Risk Reduction 2015-2030. This paper summarizes the presentation and panel discussion, with a particular focus on the common problems identified in understanding and reducing health risks from disasters in multiple countries, such as the ethical and practical difficulties in decision making on evacuating vulnerable populations that arose similarly during the Fukushima nuclear disaster in 2011 and Hurricane Ike's approach to Galveston (Texas USA) in 2008. This paper also highlights the need for greater integration of research, for example through increased review and collation of evidence from different disaster settings to identify common problems and possible solutions, which was identified in this panel session as a precursor to fulfilling the goals of the Sendai Framework.Leppold C, Ochi S, Nomura S, Murray V. The Great East Japan Earthquake, tsunamis, and Fukushima Daiichi nuclear power plant disaster: lessons for evidence integration from a WADEM 2017 presentation and panel discussion. Prehosp Disaster Med. 2018;33(4):424-427.