ArticleJournal of epidemiology2020
Did the Expansion of Insurance Coverage for Oral Health Reduce Self-reported Oral Health Inequalities in Korea? Results of Repeated Cross-Sectional Analysis, 2007-2015.
Article in Journal of epidemiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Evaluating socioeconomic inequalities in self-rated oral health and its contributing factors in Brazilian older adults.PloS one · 2025Article
- Impact of an oral care subsidization reform on intersectional inequities in self-rated oral health in Sweden.International journal for equity in health · 2024Article
- Co-Payments and Inequality in Gingival Bleeding and Dental Visits.International dental journal · 2023Article
- Adjusting the british triage system for dental care in South Korean correctional institutions: a cross-sectional study.BMC oral health · 2023Article
- Indicators of integrating oral health care within universal health coverage and general health care in low-, middle-, and high-income countries: a scoping review.BMC oral health · 2023Article
- Did Dental Insurance Expansion Improve Dental Care Needs Among Korean Adults? Difference in Difference Analysis.Journal of epidemiology · 2023Article
- Article
- Educational inequality in consumption ofFrontiers in nutrition · 2022Article
- Age period cohort analysis of chewing ability in Korea from 2007 to 2018.Scientific reports · 2021Article
- Did Expanded Dental Insurance Reduce Out-of-Pocket Expenditures on Dental Care among Older Adults in Korea? Interrupted Time-Series Analysis.International journal of environmental research and public health · 2021Article
- Did expanded access to denture services improve chewing ability in the Korean older population? Results of a regression discontinuity analysis.Scientific reports · 2020Article
Corrections and comments
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Authors and funding
2 authors.
Funding
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Abstract
backgroundIn 2009, the South Korean government expanded universal health insurance to include oral health services. In the present study, we sought to examine whether improved access resulted in a reduction in income-based self-reported oral health inequalities.
methodsWe analyzed repeated cross-sectional data from the Korea National Health and Nutrition Examination Survey (KNHANES) waves IV through VI (2007-2015). We analyzed self-reported oral health status among 68,431 subjects. Changes in oral health inequalities across four income levels (low, middle-low, middle-high, and high) were assessed with the Slope Index of Inequality (SII) and the Relative Index of Inequality (RII).
resultsThe average oral health status of children and adolescents improved the most over the observation period. The absolute magnitude of oral health inequalities (measured by the SII) improved for most groups, with the notable exception of young male adults. By contrast, the ratio of poor oral health between high- and low-income groups (measured by the RII) changed little over time, indicating that relative inequalities remained resistant to change.
conclusionsThe expansion of dental health insurance may not be sufficient to move the needle on self-reported oral health inequalities among adults.
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