Data resource profile: JMDC claims databases sourced from Medical Institutions

Area of Science:

• Health Informatics
• Medical Data Analysis
• Clinical Research Data

Background:

• JMDC, Inc. has developed a novel database integrating diverse medical information.
• The database covers claims, Diagnosis Procedure Combination (DPC) assessments, and laboratory test values.
• Data collection spans from April 2014 to October 2019, encompassing 218 medical institutions in Japan.

Purpose of the Study:

• To introduce and describe a new, extensive Japanese medical database.
• To highlight the database's capability to overcome limitations of existing health insurance society data.
• To emphasize the inclusion of data from both DPC-eligible and DPC-ineligible hospitals.

Main Methods:

• Data compilation from Japanese medical institutions.
• Inclusion of hospitalization and outpatient claims data.
• Integration of Diagnosis Procedure Combination (DPC) assessment forms and clinical laboratory test values.

Main Results:

• The database contains records from 218 medical institutions (131 DPC-eligible, 87 DPC-ineligible).
• Data ranges from April 2014 treatment records up to October 2019.
• The database enables analysis of disease status and test results, addressing limitations of prior datasets.

Conclusions:

• The JMDC database offers a valuable resource for medical research in Japan.
• It provides a more comprehensive view of patient health status and treatment compared to previous data sources.
• The inclusion of data from various hospital types enhances its utility for diverse analytical purposes.