Michio Murakami
Biographic Data
| ID | 5809670 |
|---|---|
| NAME | Michio Murakami |
| GIVEN NAMES | Michio |
| FAMILY NAME | Murakami |
| SIGNATURE | MURAKAMI M |
| AFFILIATIONS | Fukushima Medical University |
| ORCID | 0000-0002-5557-9801 |
| VERIFIED | Yes |
| TOTAL WORKS | 47 |
| TOTAL CITATIONS | 1 |
| WORKS AS AUTHOR | 45 |
| WORKS AS EDITOR | 2 |
| FIRST PUBLICATION YEAR | 2017 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Trajectory of Attitudes Toward Individuals with a History of Covid ‐19 Infection
This study used panel survey data to conduct a time‐series cluster analysis of public avoidance and care attitudes toward individuals with a history of COVID‐19 infection from July 2020 to March 2024. The analysis also examined the associations between attitude trajectories and initial characteristics, which were categorized into three groups: COVID‐19‐related sociopsychological characteristics, individual differences in sensitivity to infectious…
Diabetes and psychological distress posed greater risks than model-inferred risk of radiation-induced cancer after the Fukushima disaster
After disasters, direct deaths and secondary health effects, such as diabetes and psychological distress, can occur. After the 2011 Fukushima disaster, radiation exposure was extremely limited; however, secondary health effects increased significantly. It is critical to compare the magnitudes of these model-inferred risks to promote lifespan development and effective public health measures. Here, we used the loss of happy life expectancy (LHpLE) …
Side messages, side effects
As infectious diseases spread, governments and specialised agencies typically release a main message conveying the recommended preventive action, accompanied by side messages justifying the action. In this study, we explored how side messages influence intentions to engage in infection prevention behaviours, attitudes toward people who do versus do not support infection prevention measures, and evaluations of the poster. We conducted three repeat…
Perceptions and responses to Covid-19 through wastewater surveillance information and online search behavior
An influence of wastewater surveillance during infectious disease outbreak on public perception and behavior remains unclear. Here, we used a randomized controlled trial to analyze the influence of wastewater surveillance-based information on “understanding of,” “interest in,” “relief regarding,” “preventive behavioral intention against,” and “subsequent online search behavior related to” COVID-19. Valid responses were obtained from 1000 individu…
Effects of political treatments during the Covid-19 pandemic on infection-prevention behavior and risk perception
This study examined the impact of the Japanese government’s pandemic policies on people’s risk perception and infection-prevention behaviors through the analysis of panel survey data conducted from January 2020 to May 2023. Study 1 focused on restrictive policies, examining their effects in combination with the regions where these policies were implemented. Study 2 focused on the relaxation policy, considering their effects in combination with in…
Disaster-related deaths with alcohol-related diseases after the Fukushima Daiichi nuclear power plant accident
Introduction: The health of patients with mental disorders, such as alcohol-related diseases, often deteriorates after disasters. However, the causes of death among those with alcohol-related diseases during and after radiation disasters remain unclear. Methods: To minimize and prevent alcohol-related deaths in future radiation disasters, we analyzed and summarized six cases of alcohol-related deaths in Minamisoma City, a municipality near the Fu…
Assessment of attitudes toward critical actors during public health crises
This study introduces a new analytical framework to assess attitudes towards key stakeholders influencing public behaviour during public health crises, such as governments, crisis management experts, doctors, healthcare workers, and mass media. Due to its accessibility and speed, there is increasing interest in using social media for public surveillance during a crisis. However, analyzing the vast amount data obtained from social media and the la…
Use of personal health records during and after a disaster including a nuclear accident
This review assessed the use of personal health records (PHRs) during and after disasters, identifying benefits, barriers, and contributions to their use. A literature search using PubMed and Scopus was conducted, focusing on articles examining PHR use during and after a disaster including a nuclear power plant accident. The study found that PHRs were commonly used in various disasters, often one month after the disaster. The objectives of their …
Impact of large-scale disasters on breast cancer care
Large-scale disasters can severely impact breast cancer care, leading to treatment disruptions and delays. While empirical studies on these effects are limited, patient narratives provide valuable insights. This study explored treatment continuity and medical access among local breast cancer patients affected by the 2011 triple disaster through qualitative research methods. The study involved 21 local breast cancer patients diagnosed before the d…
Cross-Cultural Insights from Two Global Mental Health Studies
This commentary highlights two cross-cultural issues identified from our global mental health (GMH) research, RECOLLECT (Recovery Colleges Characterisation and Testing) 2: self-enhancement and ingroup biases. Self-enhancement is a tendency to maintain and express unrealistically positive self-views. Ingroup biases are differences in one’s evaluation of others belonging to the same social group. These biases are discussed in the context of GMH res…
Cross-cultural Comparison of Recovery College Implementation Between Japan and England
The online version contains supplementary material available at 10.1007/s11469-024-01356-3
Daily meals in context
To investigate school-age children's perspectives on food and nutrition, we pilot tested a method to quantify and analyze crayon drawings collected from students in health education classes at two elementary schools in Fukushima, Japan. Included were 28 students in a mixed class of first and second graders and 26 students in a fourth-grade class. Specific foods, general shapes, and color choices in children's drawings were entered into a spreadsh…
Post-traumatic growth caused by the Great East Japan Earthquake and response to coronavirus disease 2019
Association between the deaths indirectly caused by the Fukushima Daiichi nuclear power plant accident (disaster-related deaths) and pre-disaster long-term care certificate level
The health of the vulnerable populations receiving the Long-Term Care (LTC) Insurance Programs was threatened by the direct and indirect effects of disasters. The 2011 Great East Japan Earthquake and Tsunami and the explosion at the Fukushima Daiichi nuclear power plant (FDNPP) forced 164,865 people's evacuation and caused many disaster-related deaths. We examined the relationship between these deaths and LTC certification. Data were collected fr…
Annual prevalence of non-communicable diseases and identification of vulnerable populations following the Fukushima disaster and Covid-19 pandemic
Disasters, pandemics, and their response measures can have secondary effects on the physical and psychological health of affected populations. Using health insurance receipt data from 2009 to 2020, we assessed changes in the prevalence of major non-communicable diseases (NCDs), including hypertension, hyperlipidemia, diabetes, and mental disorders, among affected populations before and after the Fukushima disaster and coronavirus disease (COVID-1…
Exploration of factors associated with mask-wearing and hand disinfection in Japan after the coronavirus disease outbreak
To identify factors associated with mask-wearing and hand disinfection before and after the coronavirus disease outbreak. Longitudinal study. We surveyed Japanese people aged ≥18 years from wave 1 (January 2020) to wave 23 (January 2023). We analyzed the associations between individual characteristics, including the frequency of exposure to information and mask-wearing or hand disinfection before the outbreak and during wave 1, of 666 participant…
Against an insufficient intervention for patients with alcoholism or PTSD
Despite numerous studies using questionnaires to assess mental health problems among disaster victims following a disaster, only a few have examined actual medical treatment situations. Surveys of residents in disaster-affected areas following the Great East Japan Earthquake and Fukushima nuclear power plant disaster also indicate deteriorated mental health among survivors; however, concrete evidence of increased individuals seeking treatment at …
Mortality risk associated with nuclear disasters depends on the time during and following evacuation of hospitals near nuclear power plants
This study aimed to examine the factors correlated with emergency evacuations on patients’ prognosis in hospitals severely affected by the Fukushima Daiichi nuclear power plant (FDNPP) accident in March 2011, and to recommend measures mitigating potential health risks among them in future disasters. Seven hospitals within a 20-km radius of the FDNPP were designated as the evacuation zone, of which three hospitals located within a 5-km radius were…
Bi-directional associations between mask usage and beliefs about reasons for masking before and after the downgrading of the legal status of Covid-19 in Japan
It is important to clarify the bi-directional associations between mask usage and mask-usage motivations. Therefore, this study clarified the changes in mask usage and beliefs about reasons for masking before and after the downgrading of the legal status of COVID-19 in Japan and analyzed the bi-directional associations between the two. Online surveys were conducted in two sets among people aged 20–69 years living in Japan: the first before the do…
On-site training program for public health nurses in Fukushima Prefecture, Japan
Factors associated with the risk perception of Covid-19 infection and severe illness
Understanding COVID-19 risk perception may help inform public health messaging aimed at encouraging preventive measures and improving countermeasures against the pandemic. We conducted an online survey of 29,708 Japanese adults in February 2021 and estimated the associations between COVID-19 risk perception and a broad array of individual factors. Two logistic regressions were constructed to estimate factors associated with the risk perception of…
Empowering Children as Agents of Change to Foster Resilience in Community
The "Creative Heath" project, a participatory school activity to foster community resilience, was implemented in Fukushima, Japan, and children's experiences of the project were assessed both quantitatively and qualitatively. The project consists of three workshops: BODY, FOOD, and ACT, with activities to facilitate students' scientific and creative thinking, working in teams, presenting, and expressing their opinions. The first two schools parti…
Preventive Behaviors and Information Sources during Covid-19 Pandemic
encouraging access to multiple information sources, utilizing communication channels, and modifying messaging according to target groups are essential to promote COVID-19 preventive measures
Differences in Data Trustworthiness and Risk Perception between Bar Graphs and Pictograms
We investigated whether differences in presentation style affect risk perception, understanding, preference, and trust toward data. One hundred and sixty Fukushima Medical University students were shown the lifetime probability of breast cancer incidence for a 50-year-old woman, presented in both a pictogram and a horizontal bar graph format. Participants rated each of the following on a five-point scale by looking at each figure: risk perception…
May risk communication with non-experts contribute to post-disaster restoration of normalcy? A survey on the disaster-struck prefectures after the Great East Japan Earthquake
Post-disaster risk communication's primary goal is to restore a sense of normalcy for residents who have faced hardships. The Fukushima and Miyagi prefectural residents who experienced severe damage from the Great East Japan Earthquake were the participants (men = 257, women = 296, age = 58.40 ± 14.85) of this study, which investigated a mediation model of effective risk communication on restoring a sense of normalcy. The characteristics of risk …
Father‐child bonding among Japanese fathers of infants
We aimed to clarify the factor structure of a bonding measure among Japanese fathers with infants and the factors associated with the subscales. Among fathers of children attending the 4‐month health checkup, the Japanese version of the Mother‐to‐Infant Bonding Scale had a two‐factor structure comprising “anger” and “lack of affection.” Anger was associated with fathers’ work demands and poor mental condition, and lack of affection with fathers’ …
Towards a Long-Term Strategy for Voluntary-Based Internal Radiation Contamination Monitoring
Following Japan's 2011 Fukushima nuclear incident, we assessed voluntary-based monitoring behavior in Minamisoma City-located 10-40 km from the Fukushima nuclear plant-to inform future monitoring strategies. The monitoring in Minamisoma included occasional free of charge internal-radiation-exposure measurements. Out of around 70,000 individuals residing in the city before the incident, a total of 45,788 residents (female: 52.1%) aged ≥21 were eva…
Towards a Long-Term Strategy for Voluntary-Based Internal Radiation Contamination Monitoring
Following Japan's 2011 Fukushima nuclear incident, voluntary participation, rather than mandatory, was adopted as the default scenario for individual radiation monitoring. We evaluated the representativeness of the internal monitoring results from voluntary participants in Minamisoma City, which is located 10-40 km from the Fukushima nuclear plant. Of approximately 70,000 individuals who were residing in Minamisoma City before the incident, a tot…
Lifestyle factors and social ties associated with the frequency of laughter after the Great East Japan Earthquake
Social Capital Enhanced Disaster Preparedness and Health Consultations after the 2011 Great East Japan Earthquake and Nuclear Power Station Accident
After the Great East Japan Earthquake and the subsequent Fukushima Daiichi Nuclear Power Station accident in 2011, there was a strong demand to promote disaster preparedness approaches and health checkups for the prevention of lifestyle diseases. This study examined the yearly change in the percentage of those who prepared for disasters and who utilized health checkups in Fukushima Prefecture, and identified the factors governing disaster prepare…
Estimation of Dietary Intake of Radionuclides and Effectiveness of Regulation after the Fukushima Accident and in Virtual Nuclear Power Plant Accident Scenarios
Evaluation of radiation exposure from diet is necessary under the assumption of a virtual accident as a part of emergency preparedness. Here, we developed a model with complete consideration of the regional food trade using deposition data simulated by a transport model, and estimated the dietary intake of radionuclides and the effectiveness of regulation (e.g., restrictions on the distribution of foods) after the Fukushima accident and in virtua…
Effect of Radiological Countermeasures on Subjective Well-Being and Radiation Anxiety after the 2011 Disaster
After the Fukushima Daiichi Nuclear Power Station accident in 2011, concerns about radiation exposure and decline in subjective well-being have been reported. To tackle these problems, various countermeasures in relation to radiation have been implemented. In this study, we comprehensively evaluated the effects of radiological countermeasures on subjective well-being (e.g., satisfaction with life (SWL) and emotional well-being) and radiation anxi…
Changes in Risk Perception of the Health Effects of Radiation and Mental Health Status
After the Fukushima nuclear power plant accident, numerous evacuees reported poor mental health status and high-risk perceptions of the health effects of radiation. However, the temporal associations between these variables have not yet been examined. Using data from the Fukushima Health Survey, we examined changes in risk perception of the health effects of radiation over time and assessed the effects of mental health on such changes using logis…
Factors associated with psychological distress during the coronavirus disease 2019 (Covid-19) pandemic on the predominantly general population
Background The Coronavirus Disease 2019 (COVID-19) outbreak has escalated the burden of psychological distress. We aimed to evaluate factors associated with psychological distress among the predominantly general population during the COVID-19 pandemic. Methods We searched PubMed, EMBASE, Scopus, Cochrane Library, PsycINFO, and World Health Organization COVID-19 databases (Dec 2019–15 July 2020). We included cross-sectional studies that reported f…
Loneliness in the UK during the Covid-19 pandemic
OBJECTIVES: Loneliness is a significant public health issue. The COVID-19 pandemic has resulted in lockdown measures limiting social contact. The UK public are worried about the impact of these measures on mental health outcomes. Understanding the prevalence and predictors of loneliness at this time is a priority issue for research. METHOD: The study employed a cross-sectional online survey design. Baseline data collected between March 23rd and A…
Perceived risk and demands for countermeasures against diabetes and radiation in Fukushima after the nuclear accident
The trajectories of local food avoidance after the Fukushima Daiichi nuclear plant disaster
After the Fukushima Daiichi nuclear power plant accident in Japan, residents continue to be concerned about radiations despite strict regulations on radionuclides in foods and decontamination. We examined the trajectory of the avoidance tendency of local food among residents in the affected area. Growth mixture modelling was adapted to ten waves cohort of parents of all elementary school children (N = 1606) in the affected area (Minami soma city)…
The decision to return home and wellbeing after the Fukushima disaster
The Fukushima disaster led to a decline in the wellbeing of those affected. In this cross-sectional study, we assessed the relationship between evacuee status and wellbeing and investigated the possible variables associated with wellbeing. In January 2018, we randomly distributed questionnaires to 2000 people between the ages of 20 and 79 who lived in municipalities where evacuation orders had been lifted. The total number of participants was 680…
The structuralization of risk communication work and objectives in the aftermath of the Fukushima nuclear disaster
Researchers have not comprehensively considered the contents and objectives of risk communication. In this study, interviews were conducted with 10 risk communicators who worked on risk communication of the various health risks arising after the 2011 Fukushima nuclear disaster in Japan. We focus on extracting, codifying, and summarizing the contexts, content, and objectives of their work. The objectives of risk communication were identified as “a…
Analysis of direction of association between radiation risk perception and relocation using a random-intercept and cross lagged panel model
In the aftermath of a nuclear disaster, a person's radiation risk perception can harm their sociopsychological health. Although there are reports of an association between radiation risk perception and relocation, the direction of this association has not been clarified yet. In this study, we used a random-intercept and cross lagged panel model (RI-CLPM) to investigate the association and its direction between radiation risk perception and the pr…
May risk communication with non-experts contribute to post-disaster restoration of normalcy? A survey on the disaster-struck prefectures after the Great East Japan Earthquake
Post-disaster risk communication's primary goal is to restore a sense of normalcy for residents who have faced hardships. The Fukushima and Miyagi prefectural residents who experienced severe damage from the Great East Japan Earthquake were the participants (men = 257, women = 296, age = 58.40 ± 14.85) of this study, which investigated a mediation model of effective risk communication on restoring a sense of normalcy. The characteristics of risk …
Higher psychological distress experienced by evacuees relocating outside Fukushima after the nuclear accident
This self-administered mail survey examined whether post-disaster residential location after the Fukushima nuclear power plant accident affected psychological distress, with related factors. We targeted 180,604 individuals, including 24,177 residents within evacuation order areas, in FY2011 and FY2015. Psychological distress trajectory was examined using a growth mixture model (GMM) on a total K6 score per year. Relationships between post-disaste…
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 evacuati…
Associations of the Covid-19 pandemic with the economic status and mental health of people affected by the Fukushima disaster using the difference-in-differences method
Although the coronavirus disease 2019 (COVID-19) pandemic and relevant preventive measures can affect the economic status and mental health of the public, their effect remains unraveled owing to a limited number of surveys conducted before and during the COVID-19 pandemic. We investigated the association of COVID-19 and relevant measures with multivariate outcomes among people affected by the Fukushima disaster in 2011 using the difference-in-dif…
Vulnerability of Evacuees Having No One to Consult after the Fukushima Nuclear Disaster
After the accident at the Fukushima nuclear power plant in 2011, caused by the Great East Japan Earthquake, some evacuees had no one to consult despite many local care providers offering assistance. This study identified the characteristics of individuals who did not receive consultations and the relevant determinants, and proposed the available measures to address this issue. Altogether, 32,699 participants aged 16 years or older and residing in…
Tailoring Digital Tools to Address the Radiation and Health Information Needs of Returnees after a Nuclear Accident
Digital tools are increasingly used for health promotion, but their utility during recovery from a nuclear disaster has yet to be established. This study analysed differences in knowledge, attitude, and practice (KAP) toward digital tools for radiation protection and health promotion, and preferences for specific application functions, among cohorts living within and outside areas affected by the Fukushima Daiichi nuclear power station (FDNPS) ac…
Prevention and Control of Covid-19 in Imperfect Condition
Infection control at nursing homes is a top priority to address the COVID-19 pandemic because people who are the most vulnerable to the pathogen live in close contact. Currently, control measures specifically for nursing homes often ignore under-resourced condition of the facilities. To make guidelines assuming realistic conditions, an expert meeting with 16 members established the key challenges in nursing homes, the basics of infection control,…
User-Guided Design of a Digital Tool for Health Promotion and Radiation Protection
People with a higher eHL had a more positive KAP. For those with a lower eHL, we are formulating easy-to-understand explanations to promote the utilization of the digital tool and enthusiasm for future community-oriented digital tools
Father‐child bonding among Japanese fathers of infants
We aimed to clarify the factor structure of a bonding measure among Japanese fathers with infants and the factors associated with the subscales. Among fathers of children attending the 4‐month health checkup, the Japanese version of the Mother‐to‐Infant Bonding Scale had a two‐factor structure comprising “anger” and “lack of affection.” Anger was associated with fathers’ work demands and poor mental condition, and lack of affection with fathers’ …
On-site training program for public health nurses in Fukushima Prefecture, Japan
Factors associated with the risk perception of Covid-19 infection and severe illness
Understanding COVID-19 risk perception may help inform public health messaging aimed at encouraging preventive measures and improving countermeasures against the pandemic. We conducted an online survey of 29,708 Japanese adults in February 2021 and estimated the associations between COVID-19 risk perception and a broad array of individual factors. Two logistic regressions were constructed to estimate factors associated with the risk perception of…
Medicine (40 works) · Environmental health (27 works) · Psychology (24 works) · Risk Perception and Management (19 works) · Radioactive contamination and transfer (17 works) · Fukushima Nuclear Accident (14 works) · Nuclear power plant (13 works) · Demography (12 works) · Medical emergency (12 works) · Nursing (12 works)