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http://dx.doi.org/10.12811/kshsm.2014.8.2.011

Analysis on the Regional Variation of the Rate of Inpatient Medical Costs in Local-Out: Geographically Weighted Regression Approach  

Jo, Eun-Kyung (Department of Health Administration, Yonsei University Graduate School)
Lee, Kwang-Soo (Department of Health Administration, Yonsei University)
Publication Information
The Korean Journal of Health Service Management / v.8, no.2, 2014 , pp. 11-22 More about this Journal
Abstract
This study purposed to analyze the regional variation of the local-out rates of inpatient services. Multiple data sources collected from National Health Insurance Corporation and statistics Korea were merged to produce the analysis data set. The unit of analysis in this study was city, Gun, Gu, and all of them were included in analysis. The dependent variable measured the local-out rate of inpatient cost in study regions. Local environments were measured by variables in three dimensions: provider factors, socio-demographic factors, and health status. Along with the traditional ordinary least square (OLS) based regression model, geographically weighted regression (GWR) model were applied to test their effects. SPSS v21 and ArcMap v10.2 were applied for the statistical analysis. Results from OLS regression showed that most variables had significant relationships with the local-out rate of inpatient services. However, some variables had shown diverse directions in regression coefficients depending on regions in GWR. This implied that the study variables might not have consistent effects and they may varied depending the locations.
Keywords
The Rate of Inpatient Medical Costs in Local-Out; GWR(Geographically Weighted Regression); Provider; Population; Health Status;
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Times Cited By KSCI : 6  (Citation Analysis)
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