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Impact of co-payment for outpatient utilization among Medical Aid beneficiaries in Korea: A 5-year time series study

Authors
 Ki-Bong Yoo  ;  Hong-Uk Ahn  ;  Eun-Cheol Park  ;  Tae Hyun Kim  ;  Sun Jung Kim  ;  Jeoung A Kwong  ;  Sang Gyu Lee 
Citation
 Health Policy, Vol.120(8) : 960-966, 2016 
Journal Title
 Health Policy 
ISSN
 0168-8510 
Issue Date
2016
MeSH
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Costs and Cost Analysis/economics* ; Delivery of Health Care/utilization* ; Fees and Charges/statistics & numerical data* ; Female ; Health Services/utilization* ; Humans ; Infant ; Infant, Newborn ; Inpatients ; Insurance, Health/economics* ; Male ; Middle Aged ; Outpatients* ; Republic of Korea
Keywords
Co-payment ; Cost sharing ; Medical services ; Medical-Aid ; Segmented regression
Abstract
BACKGROUND: The Korean government implemented an outpatient co-payment scheme in July 2007 to control Medical-Aid beneficiaries' overutilization of healthcare services. OBJECTIVES: To assess changes in the utilization of medical services resulting from the outpatient co-payment scheme. METHODS: 410,142 subjects were selected and health insurance reimbursement data from July 2006 to June 2011 was examined. We assessed the changes in the total medical cost, total adjusted patient days, inpatient days, inpatient total medical cost, the number of outpatient visits, and outpatient total medical cost using segmented regression analysis. RESULTS: Following the introduction of the policy, the number of outpatient visits per person fell by 0.16 days in July 2008, and by 0.06 days in July 2010, compared to June 2007. The outpatient total medical cost per person rose by $4.11 in July 2010 compared to June 2007. The inpatient utilization increased constantly during the period of the study. So the total medical cost as well as the total adjusted number of patient days also increased constantly. CONCLUSION: The outpatient co-payment policy was effective for reducing the number of outpatient visits. It could not control the cost per outpatient visit and inpatient utilization. So the total medical cost was increased.
Full Text
http://www.sciencedirect.com/science/article/pii/S0168851016301737?via%3Dihub
DOI
10.1016/j.healthpol.2016.07.001
Appears in Collections:
4. Graduate School of Public Health (보건대학원) > Graduate School of Public Health (보건대학원) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Tae Hyun(김태현) ORCID logo https://orcid.org/0000-0003-1053-8958
Park, Eun-Cheol(박은철) ORCID logo https://orcid.org/0000-0002-2306-5398
Lee, Sang Gyu(이상규) ORCID logo https://orcid.org/0000-0003-4847-2421
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/151892
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