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Clinical epidemiology has been evolved in modern medicine, based on two disciplines of clinical sciences and epidemiology. That helps to understand the conceptual gaps between structured experience of basic science and the more complex, open-ended problems arising for the care of patients. Based on the principals of clinical trials and the use of clinical epidemiology, we tried to provide the evidence towards improving the care of the patients.

Biostatistics is an applied statistics for medical and biological researches. We aim to develop statistical methodologies for study design, data collection, and data analysis in these researches. We are also trying to solve any statistical issues arising in the process of the design, conduct, analysis, and evaluation of clinical studies. The research project of the graduate students in our group is "development of novel statistical methods for issues arising in medical researches, and evaluation of the performance of the statistical methods". Our group contributes to solve problems in human health using statistical approaches.

We are specialized in the prevention of work-related mental diseases. We has conducted various empirical and epidemiological studies on the risk factors for work-related diseases. Projects for regular students in doctoral or master’s programs are the following:

• 1) Various mental disorder patients’ treatment in occupational health.
• 2) Training on the technique for management worker’s mental and physical health issues as an industrial doctor.
• 1) Various mental disorder patients’ treatment in occupational health.
• 2) Training on the technique for management worker’s mental and physical health issues as an industrial doctor.
• 3) Researches by the epidemiologic techniques.
  Study Programs for Short Stay Students (one week - one trimester) are the following:
• 1) The health care for workers mainly on their mental health.
• 2) Clinical psychiatry (Major depressive disorder, Adjustment disorder etc.)
• 3) The issues on return-to-work support.

Our department, Health Care Policy and Management, aims to develop effective policy based on evidence from analysis and evaluation of issues among health system, health care management, and quality of health services with multidisciplinary approach including public administration, economics, epidemiology, environmental sciences, and international health. Recent major research projects include health economic analysis of infectious diseases control and cancer care. Research techniques such as cost-effectiveness analysis and market analysis of health services are mainly employed. Research projects on international health and development of tadaptation programme for global warming based on health impact assessment are also being conducted.

Health services research is a multidisciplinary science that analyzes through empirical analysis, from a comprehensive and scientific perspective, the quality of the medical care (including health care, nursing and welfare) from several points of view, including the structure (Policy, staffing, facility, budget, insurance, health system, etc.), process (Utilization, accessibility, referral under health system, etc.) and outcome (QOL, cost, satisfaction, ADL, well-being, survival, etc.). Our research group, not only study the arrangement of the medical care field alone, but　also the multidisciplinary points of view of policy, law, economics, sociology, anthropology and so on, incorporating effectively their fruits, in order to achieve better medical services for all people, and aiming to help transmitting their success inside and outside the country, and with this, improving the quality of service “achieving medical care in harmony with life”

Digital health or digital medicine is a relatively new field in medicine. It aims to solve various medical and healthcare issues in the society, by applying not only conventional epidemiological and statistical methods but also AI technologies, such as machine learning, to a variety of digitized information, including electronic medical records and claims data, data obtained from mobile apps and biosensors, images and voice data, genomic and omics information, etc. We would like to welcome students and researchers who are willing to take on the challenge of analyzing new types of medical big data and finding and disseminating useful messages to patients, healthcare professionals, and society, as well as developing and implementing new tools and modalities, after acquiring a solid understanding of the basics of epidemiology and biostatistics.

Having been faced super aging society, we are striving useful research and educational activities for elderly people and their families, and all aging population who are in need of caring. I am interested in the following theme and our group are good at mixed method with qualitative research method such as Grounded Theory Approach. Medical, and social-welfare profession including nurses, public health nurses or home visiting nurses with clinical experiences are welcomed.

• 1. Mental health for professional female carers of frail elderly parent
• 2. Balancing work and family life
• 3. Supporting middle-aged couples (foreign bride and Japanese spouse) who take care of aging family members
• 4. Gender issues on family caregiving
• 5. Family caregiving in Mongolia
• 6. Toyamagata-day service

“The existing gross inequality in the health status of the people, particularly between developed and developing countries as well as within countries, is politically, socially, and economically unacceptable and is, therefore, of common concern to all countries.” (The Declaration of Alma-Ata, September 1978) With this statement in mind, we have conducted action-oriented researches into global public health problems among socially disadvantaged and vulnerable population. Making change happen is difficult but we believe it is possible through scientifically sound research. Current topics of our research include injury prevention, safety and health promotion and communication in Japan and other Asian countries.

Sixty per cent of the world's population works. Work should never pose a threat to people's safety and health. However, occupational diseases and work-related injuries and illnesses have always been caused. Even today, various factors threaten workers' health, including physical hazards, infectious diseases, technological innovations, and socioeconomic structure changes. Steady efforts to determine and eliminate the root causes are essential to preventing work-related health problems. Occupational health is the multidisciplinary practical science based on medicine, public health, and epidemiology to protect workers' health.

The notion of empowerment is a useful concept and method, which can cross national and cultural boundaries to be utilized in many different situations. Our lab designed such a framework of community empowerment for life span development, and applied to programs in other countries, with special attention to local cultural values. Participation by and empowerment of the people in areas of health promotion, family caregiving, housing, and community development will be examined. This is offered in the hope that we may be able to create communities that can meet their own needs, in an interdependent manner that draws on many levels of contribution to make lives worth living across the lifespan, regardless of where we live.

Department of Social Psychiatry & Mental Health looking into the causes and solutions of sociopathological phenomena such as alcoholism, drug abuse, hikikomori (social withdrawal), non attendance at school, child abuse, domestic violence and community care, through field-work and empirical research.. Main recent achievements are as follows.

Factors contributing to problematic behaviors and mental symptoms and their assessment: assessment of risk factors in child abuse cases, assessment of risk of addictive substance reuse, relationship between mental disorders/addiction and violence, study of factors contributing to behavioral addictions.

Support systems and methods: introduction of open dialogue method to Japan,

Study of social rehabilitation support system for drug addicts, trauma informed care for addiction, iolence cases. Research on trauma informed care for addiction, abuse and violence cases, support tools for caregivers with addiction and their children, rehabilitation programs for domestic violence perpetrators

Reproductive, Maternal, Newborn, and Child Health is one of the public health issues. It covers the health concerns and interventions across the life course involving women before and during pregnancy; newborns, that is, the first 28 days of life; and children to their fifth birthday. Evaluation and implementation of evidence-based, high-quality reproductive health services, closing inequality, and advocacy of reproductive health rights are essential. Our current research topics include adolescent pregnancy, women's childbirth experience, respectful maternity care, hospital-based doula support, postpartum depression, elementary school children handwashing practice, and WHO guideline implementation.