Abstract
It is an important mission for health policy makers to assure the quality care for public. This requires some evaluation methods. The compliance level of clinical practice guidelines (CPGs) will be one of the possible tools to evaluate the quality of clinical process. However, it is not an easy task to systematically monitor the compliance level. As the Japanese DPC database gathers very detailed process information, it is possible to evaluate the CPGs compliance level. In this article, the authors would like show the usability of DPC database for process evaluation based on our previous literatures.