J Prev Med Public Health.
2019 Jan;52(1):51-59. 10.3961/jpmph.18.162.
Poor People and Poor Health: Examining the Mediating Effect of Unmet Healthcare Needs in Korea
- Affiliations
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- 1Department of Preventive Medicine, Graduate School of Public Health, Seoul National University, Seoul, Korea. saerom.rb@gmail.com
- KMID: 2440466
- DOI: http://doi.org/10.3961/jpmph.18.162
Abstract
OBJECTIVES
The purpose of this study was to estimate the mediating effect of subjective unmet healthcare needs on poor health. The mediating effect of unmet needs on health outcomes was estimated.
METHODS
Cross-sectional research method was used to analyze Korea Health Panel data from 2011 to 2015, investigating the mediating effect for each annual dataset and lagged dependent variables.
RESULTS
The magnitude of the effect of low income on poor health and the mediating effect of unmet needs were estimated using age, sex, education level, employment status, healthcare insurance status, disability, and chronic disease as control variables and self-rated health as the dependent variable. The mediating effect of unmet needs due to financial reasons was between 14.7% to 32.9% of the total marginal effect, and 7.2% to 18.7% in lagged model.
CONCLUSIONS
The fixed-effect logit model demonstrated that the existence of unmet needs raised the likelihood of poor self-rated health. However, only a small proportion of the effects of low income on health was mediated by unmet needs, and the results varied annually. Further studies are necessary to search for ways to explain the varying results in the Korea Health Panel data, as well as to consider a time series analysis of the mediating effect. The results of this study present the clear implication that even though it is crucial to address the unmet needs, but it is not enough to tackle the income related health inequalities.
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