PHRサービス「ポケットカルテ」に集積された個々の住民の生涯の健康医療福祉介護履歴情報は、当該個人のLife-Logといえることが判明し、従来の医療費に加えて、健康維持や「未病」対応のための消費の総和を新たな指標「健康費」と定義した。現在の医療経済施策基盤である国民医療費の上位概念となる「健康費」を最適化することは、医療の質を向上しつつ、国民医療費を適正化し、国民皆保険の維持に寄与すると思われる。 / The big data of the life-long history information in health care and welfare care of an individual resident stored in the PHR service "Pocket Karte", has been found to be the Life-Log of the resident. So, I have defined a new index "Health Care Fee" as the sum of consumptions for health maintenance and the "pre-disease" care in addition to the conventional medical costs. It is believed that to optimize the "Health Care Fee", the broader concept of the Estimates of National Medical Care Expenditure as the basis for medical economic policy currently, is to contribute to improve the quality of medical care, and to optimize the Estimates of National Medical Care Expenditure, and to maintain of universal health insurance system in Japan. / 博士(政策科学) / Doctor of Philosophy in Policy and Management / 同志社大学 / Doshisha University