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KMID : 0387320100200020017
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Korean Journal of Health Policy and Administration
2010 Volume.20 No. 2 p.17 ~ p.39
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Variation in hospital length of stay according to the DRG-based prospective payment system in the voluntarily participating providers
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Choi Sook-Ja
Kwon Soon-Man
Kang Gil-Won
Moon Sang-Jun
Lee Jin-Seok
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Abstract
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This study explored the impact on the DRG(Diagnosis-Related Groups)-based prospective payment system(PPS) operated by voluntarily participation providers. We analyzed whether the provides in the DRG-based PPS and in traditional fee-for-service(FFS) systems showed different the degree of variation in length of stay(LOS), and the providers’ behaviors depending on the differences according to the varied participation periods. The study sample included all data 2,061 institutions participated in DRG-PPS in 2007 and all cases 473 FFS institutions which reported fee-for-service claims were reviewed same diagnosized diseases at least 10cases claims during three months We compared the differences of the LOS among health care institutions according to their type, region, and size. For DRGs showing significant differences in LOS, multiple regression analyses were performed to find out factors associated with LOS and interaction effect participation and hospital types or participation periods. The result provide the evidence that the DRG payment system operated by volunteering health care institutions had impact on resources use, which can reduce the institutions’ the length of stay. While some DRGs had no correlation between participation periods and LOS, other DRGs, DRG participation period reversely linear relationship with LOS. That is to say, the longer participation year, the less reducing the LOS. These results support the future expansion of the DRG-based PPS plan to all health care services in Korea.
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KEYWORD
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Diagnoses-related groups(DRG), length of stay, participation periods
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