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The Differences in Health Care Utilization between Medical Aid and Health Insurance: A Longitudinal Study Using Propensity Score Matching

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  • Jae-Hyun Kim
  • Kwang-Soo Lee
  • Ki-Bong Yoo
  • Eun-Cheol Park

Abstract

Study Objectives: Health care utilization has progressively increased, especially among Medical Aid beneficiaries in South Korea. The Medical Aid classifies beneficiaries into two categories, type 1 and 2, on the basis of being incapable (those under 18 or over 65 years of age, or disabled) or capable of working, respectively. Medical Aid has a high possibility for health care utilization due to high coverage level. In South Korea, the national health insurance (NHI) achieved very short time to establish coverage for the entire Korean population. However there there remaine a number of problems to be solved. Therefore, the objective of this study was to investigate the differences in health care utilization between Medical Aid beneficiaries and Health Insurance beneficiaries. Methods & Design: Data were collected from the Korean Welfare Panel Study from 2008 to 2012 using propensity score matching. Of the 2,316 research subjects, 579 had Medical Aid and 1,737 had health insurance. We also analyzed three dependent variables: days spent in the hospital, number of outpatient visits, and hospitalizations per year. Analysis of variance and longitudinal data analysis were used. Results: The number of outpatient visits was 1.431 times higher (p

Suggested Citation

  • Jae-Hyun Kim & Kwang-Soo Lee & Ki-Bong Yoo & Eun-Cheol Park, 2015. "The Differences in Health Care Utilization between Medical Aid and Health Insurance: A Longitudinal Study Using Propensity Score Matching," PLOS ONE, Public Library of Science, vol. 10(3), pages 1-13, March.
    • Handle: RePEc:plo:pone00:0119939
    DOI: 10.1371/journal.pone.0119939
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    References listed on IDEAS

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    1. Jeon, Boyoung & Kwon, Soonman, 2013. "Effect of private health insurance on health care utilization in a universal public insurance system: A case of South Korea," Health Policy, Elsevier, vol. 113(1), pages 69-76.
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    Cited by:

    1. Hye Yin Park & Yun-Chul Hong & Ichiro Kawachi & Juhwan Oh, 2018. "Gaps in universal health coverage in South Korea: Association with depression onset in a community cohort," PLOS ONE, Public Library of Science, vol. 13(6), pages 1-11, June.
    2. Hwa-Young Lee & Naoki Kondo & Juhwan Oh, 2018. "Medical expenditure and unmet need of the pre-elderly and the elderly according to job status in Korea: Are the elderly indeed most vulnerable?," PLOS ONE, Public Library of Science, vol. 13(3), pages 1-12, March.
    3. So-Hyun Moon & Hyun-Ju Seo & Dong Young Lee & Seong Min Kim & Jeong Min Park, 2019. "Associations Among Health Insurance Type, Cardiovascular Risk Factors, and the Risk of Dementia: A Prospective Cohort Study in Korea," IJERPH, MDPI, vol. 16(14), pages 1-9, July.
    4. Jung Hoon Woo & Zachary Grinspan & Jason Shapiro & Sang Youl Rhee, 2016. "Frequent Users of Hospital Emergency Departments in Korea Characterized by Claims Data from the National Health Insurance: A Cross Sectional Study," PLOS ONE, Public Library of Science, vol. 11(1), pages 1-10, January.
    5. Myeung Guen Oh & Mi Ah Han & Na-Ra Yun & Jong Park & So Yeon Ryu & Dong-Min Kim & Seong-Woo Choi, 2015. "A Population-Based, Nationwide Cross-Sectional Study on Influenza Vaccination Status among Cancer Survivors in Korea," IJERPH, MDPI, vol. 12(8), pages 1-17, August.
    6. Myung Ja Kim & Eunhee Lee, 2020. "How to Reduce Excessive Use of the Health Care Service in Medical Aid Beneficiaries: Effectiveness of Community-Based Case Management," IJERPH, MDPI, vol. 17(7), pages 1-10, April.
    7. Jeonghyun Cho & Kyungin Jeong & Samsook Kim & Hyejin Kim, 2019. "Exploring the Healthcare Seeking Behavior of Medical Aid Beneficiaries Who Overutilize Healthcare Services: A Qualitative Descriptive Study," IJERPH, MDPI, vol. 16(14), pages 1-9, July.
    8. Aistov, Andrey V. (Аистов, Андрей) & Aleksandrova, Ekaterina A. (Александрова, Екатерина), 2018. "Ex Post Moral Hazard in Private Health Insurance [Постконтрактный Оппортунизм На Рынке Добровольного Медицинского Страхования]," Ekonomicheskaya Politika / Economic Policy, Russian Presidential Academy of National Economy and Public Administration, vol. 3, pages 148-181, June.

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