Linkage rate between data from health checks and health insurance claims in the Japan National Database.

ABSTRACT:

Background

Japan's National Database (NDB) includes data on health checks and health insurance claims, is linkable using hash functions, and is available for research use. However, the linkage rate between health check and health insurance claims data has not been investigated.

Methods

Linkage rate was evaluated by comparing observed medical and pharmaceutical charges among health check recipients in fiscal year (FY) 2009 (N = 21 588 883) with expected charges from the same population when record linkage was complete. Using the NDB, observed charges were estimated from the first published result of linking health check recipients in FY2009 and their health insurance claims in FY2010. Expected charges were estimated by combining 3 publicly available datasets, including data f

SUBMITTER: Okamoto E 

PROVIDER: S-EPMC3872528 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature