As the prevalence of chronic diseases is continuously increasing, the socioeconomic cost of those conditions in Korea is also rising. In order to effectively manage chronic diseases, the "Community-Based Primary Care Project" was implemented from 2014 to 2016 and focused on primary medical care and physician-led chronic disease management. The purpose of this study is evaluating the effects of the project through the DID (difference in difference) model. The project's database and the National Health Insurance claims database were both used to compare the project and control groups (n = 6092 vs 24 368). Results of the analysis show that medication adherence was increased more in the project group compared with the control group. Hospitalization days, outpatient days, and number of primary medical clinic visits increased more in the participant group than the control group. As the project showed an improvement in treatment persistence, it will be necessary to monitor for a longer period of time.
Keywords: DID model; National Health Insurance claims; community-based primary care project; evaluation; hospitalization day; medication adherence; number of primary medical clinic visits; outpatient days.