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Early impact on outpatients of mandatory adoption of the DRG-based reimbursement system in Korea on use of outpatient care: Differences in medical utilization and pre-surgery examination

Authors
 Seung Ju Kim  ;  Kyu‐Tae Han  ;  Woorim Kim  ;  Sun Jung Kim  ;  Eun‐Cheol Park 
Citation
 Health Services Research, Vol.53(4) : 2064-2083, 2018 
Journal Title
 Health Services Research 
ISSN
 0017-9124 
Issue Date
2018
Keywords
Diagnosis‐related group ; spillover effect ; outpatient ; medical service utilization
Abstract
Objective : To explore the impact of mandatory adoption of diagnosis‐related groups (DRGs) on the use of outpatient care in Korea. Data Sources : National Health Claim data from 2,022 hospitals and 1,029,101 admission cases during 2011–2014: tonsillectomy/adenoidectomy, inguinal/femoral hernia operation, and hemorrhoidectomy. Study Design : Outcome variables included probability of outpatient visit, number of outpatient visits, and outpatient medical expenditures within 30 days. Presurgery examination before hospitalization for surgery, including basic and other examination, was conducted to evaluate a possible shift in health care service. A difference‐in‐difference research design was used to evaluate the impact of the DRG system on the use of outpatient care. Principal Findings : Before the introduction of the DRG system, 384,609 (91.1 percent) participants used an outpatient clinic either before or after hospitalization. In our study, the number of outpatient visits and outpatient medical expenditures within 30 days increased after mandatory adoption of the DRG system. After adoption of the DRG system, volume and costs for presurgery examinations increased before hospitalization. Conclusion : We observed a spillover effect after mandatory adoption of the DRG system. A future payment system should be designed for spillover effects, and the introduction of a new payment system that expands the DRG‐based reimbursement system should be considered.
Full Text
https://onlinelibrary.wiley.com/doi/abs/10.1111/1475-6773.12749
DOI
10.1111/1475-6773.12749
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
Yonsei Authors
박은철(Park, Eun-Cheol) ORCID logo https://orcid.org/0000-0002-2306-5398
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/163149
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