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KMID : 1170320140200010001
Korean Journal of Health Economics and Policy
2014 Volume.20 No. 1 p.1 ~ p.19
Evaluation of Medication Duplication Management Program for Medicaid patients in South Korea
Kim Seong-Ok

Park Sylvia
Lee Ju-Hyang
Abstract
The prevention program of medication duplication for the Medicaid patients has been implemented since March 2010 to prevent duplication of same ingredient administration in outpatient prescription. The objective of this article is to evaluate short term effect of the program in terms of saving in medical expenditure and shortening of medical use using segmented regression analysis. National Health Insurance Claims data from March 2009 to August 2011 to was used to explore the prevention program of medication duplication for the Medicaid patients with segmented regression analysis. The results showed that the program influenced on the use of outpatient prescription services (measured as prescription days) and pharmaceutical expenditures (measured as pharmacy costs). Although this study has significant limitation that the comparison period has duplicated with the Drug Utilization Review program initiation (October 2010), but DUR didn`t manage any limitation to the outpatient prescription services. Thus we assume the decreasing effect of outpatient prescription services and pharmaceutical expenditures mainly due to the prevention program of medication duplication. However, the patients identified as medication duplication users are mostly suffer from chronic diseases, comprehensive measure to prevent medication duplication to promote rational use for the Medicaid patients. Since medications for chronic diseases were screened with the prevention program of duplication, policy makers need to develop comprehensive drug review and management service to improve rational drug use.
KEYWORD
segmented regression analysis, Medicaid patient, medication duplication management, medical expenditure, medical use, segmented regression analysis
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