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http://dx.doi.org/10.5762/KAIS.2012.13.4.1739

Comparison of Hospital Standardized Mortality Ratio Using National Hospital Discharge Injury Data  

Park, Jong-Ho (Kyeimyoung University Dongsan Medical Center)
Kim, Yoo-Mi (Dept. of Health Policy & Management, Sangji University)
Kim, Sung-Soo (Dept. of Political Science, Inje University)
Kim, Won-Joong (Dept. of Health Policy & Management, InJe University)
Kang, Sung-Hong (Dept. of Health Policy & Management, InJe University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.4, 2012 , pp. 1739-1750 More about this Journal
Abstract
This study was to develop the assessment of medical service outcome using administration data through compared with hospital standardized mortality ratios(HSMR) in various hospitals. This study analyzed 63,664 cases of Hospital Discharge Injury Data of 2007 and 2008, provided by Korea Centers for Disease Control and Prevention. We used data mining technique and compared decision tree and logistic regression for developing risk-adjustment model of in-hospital mortality. Our Analysis shows that gender, length of stay, Elixhauser comorbidity index, hospitalization path, and primary diagnosis are main variables which influence mortality ratio. By comparing hospital standardized mortality ratios(HSMR) with standardized variables, we found concrete differences (55.6-201.6) of hospital standardized mortality ratios(HSMR) among hospitals. This proves that there are quality-gaps of medical service among hospitals. This study outcome should be utilized more to achieve the improvement of the quality of medical service.
Keywords
Medical service outcome; In-hospital death rate; Hospital standardized mortality ratio; Quality improvement;
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Times Cited By KSCI : 8  (Citation Analysis)
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