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KMID : 1170320160220040001
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Korean Journal of Health Economics and Policy
2016 Volume.22 No. 4 p.1 ~ p.20
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The effect of the fixed copayment on medical utilization and health expenditure of the elderly
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Na Young-Kyoon
Jeong Hyoung-Sun
Ahn Bo-Ryung
Lee Kwang-Soo
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Abstract
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This study focused on the effect of fixed copayment program for elderly outpatients on medical utilization and health expenditure. The cohort data of National Health Insurance Service (NHIS) were analysed using difference-in-difference (DID) method with propensity score matching (PSM). The number of outpatient visits per capita per year increased in the case of test group than that of a control group, and their copayment per capita per year decreased, and their medical expenditures per capita per year increased showing statistically significant differences. This results suggest that fixed copayment program for elderly outpatients has contributed to elderly population`s access to healthcare by reducing their burden in their use of health care. This might include user`s moral hazard or providers` induced demand as well. Both access to health care of the elderly and stability of the national health insurance fund need to be considered in determining the upper limit of health expenditure and level of copayment in the fixed copayment program for elderly outpatients.
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KEYWORD
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Fixed copayment program for elderly outpatients, Outpatient visits per capita, Propensity Score Matching (PSM), Difference in Difference (DID)
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