抄録 ICT @@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ICT@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@@@@@@@@@@@@@@@@@ キーワード Abstract With the development of information and communication technology (ICT) over the past few years, large amounts of data can easily be collected in all fields. In the healthcare field, large-scale data or big

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... ta, which have various advantages over epidemiological/statistical data, are becoming available as scientific evidence. Additionlly, data on medical costs such as receipt information, for example, are included among these large-scale data allowing cost-effectiveness analysis. Therefore, with the increase in the amount of data that can be handled due to the evolution of ICT, the approach to data utilization in the field of health and medical care gradually changes. This means that evidence-based health care can be changed from the viewpoint of data utilization. Regarding the utilization of scientific data in the field of health and medical care, the importance of epidemiological and statistical methods will remain unchanged. However, by significantly increasing the range and amount of data, it is possible to utilize data with very significant advantages from a statistical point of view. Meanwhile, for the utilization of these data, securing quality as scientific data and-, Minami,