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KMID : 1002520170110030065
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Korean Journal of Health Service Management
2017 Volume.11 No. 3 p.65 ~ p.78
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The Effect of Obesity on Medical Costs and Health Service Uses
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Kim Da-Yang
Kwak Jin-Mi
Choi So-Young
Lee Kwang-Soo
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Abstract
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Objectives : Obesity is a worldwide health concern due to an increasing obese population. This study proposed to analyze the differences in medical costs and care utilization between obese and normal group using propensity score matching.
Methods : Data were collected from the sample cohort database by the Korea National Health Insurance Corporation. Propensity score matching(PSM) was applied to control selection bias, and factors affecting obesity were used as covariates in PSM.
Results : The results showed higher medical costs and care utilization in the obese group than the normal group. According to gender and medical type, there were differences in the relationships between obesity and medical charges and utilization. In particular, the differences in the female population were larger in both outpatients and inpatients than the male population.
Conclusions : It is important to manage obesity, because obesity has a negative effect on national health insurance costs. These findings suggest directions for future research.
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KEYWORD
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Obesity, Medical Charges, Medical Utilization, Propensity Score Matching
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