Impact of MID-NET^® on Data Driven Clinical Project in Japan

<p>In Japan, Medical Information Database NETwork (MID-NET^®) is a database that collects and analyzes medical information, such as electronic medical records, on a large scale to promote advanced safety measures for pharmaceuticals and other products using medical big data. It is managed and operated by the Pharmaceuticals and Medical Devices Agency. In this study, we examined the problems encountered by each medical institution along with their solutions, focusing on activities related to data standardization and data quality control, which are needed for extensive usage of medical information, including MID-NET^® data. MID-NET^® implemented data quality management since FY2013 as part of preparations for full operation. Data quality management is important for integrated analysis of medical data by multiple institutions, and one of them is standardized code mapping. We developed governance methods for the purpose of improving the medical master quality of cooperating institutions with MID-NET. The proposals of governance results were feedback to each institution, and full operation of the governance was started from August 2020. A tool was developed and automated for the extraction of difference medical master of each institution. Based on the classified results by governance center, the most optimal standardized code was proposed by the medical profession and feedback to each facility monthly. Further studies are needed in order to increase the registration rate after the proposal of standardization code. Standard codes are expected to be more efficient and accurate when managed upstream, such as in the department systems of each institution, rather than managed by each project.</p>