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Outcomes of kidney transplantation over a 16-year period in Korea: An analysis of the National Health Information Database

 Hyung Soon Lee  ;  Minjin Kang  ;  Banseok Kim  ;  Yongjung Park 
 PLOS ONE, Vol.16(2) : e0247449, 2021-02 
Journal Title
Issue Date
Adult ; Antilymphocyte Serum / analysis* ; Databases, Factual ; Female ; Graft Rejection / epidemiology* ; Graft Rejection / etiology ; Graft Rejection / prevention & control ; Humans ; Kidney Transplantation / methods* ; Longitudinal Studies ; Male ; Middle Aged ; Multivariate Analysis ; Republic of Korea / epidemiology ; Risk Assessment ; Rituximab / therapeutic use* ; Survival Analysis ; Young Adult
Background: This study investigated the outcomes of kidney transplantation (KT) over a 16-year period in Korea and identified risk factors for graft failure using a nationwide population-based cohort.

Methods: We investigated the Korean National Health Insurance Service-National Health Information Database. Health insurance claims for patients who underwent KT between 2002 and 2017 were analyzed.

Results: The data from 18,331 patients who underwent their first KT were reviewed. The percentage of antithymocyte globulin (ATG) induction continuously increased from 2.0% in 2002 to 23.5% in 2017. Rituximab began to be used in 2008 and had increased to 141 patients (9.6%) in 2013. Acute rejection occurred in 17.3% of all patients in 2002 but decreased to 6.3% in 2017. The rejection-free survival rates were 78.8% at 6 months after KT, 76.1% after 1 year, 67.5% after 5 years, 61.7% after 10 years, and 56.7% after 15 years. The graft survival rates remained over 80% until 12 years after KT, and then rapidly decreased to 50.5% at 16 years after KT. In Cox's multivariate analysis, risk factors for graft failure included being male, more recent KT, KT from deceased donor, use of ATG, basiliximab, or rituximab, tacrolimus use as an initial calcineurin inhibitor, acute rejection history, and cytomegalovirus infection.

Conclusions: ATG and rituximab use has gradually increased in Korea and more recent KT is associated with an increased risk of graft failure. Therefore, meticulous preoperative evaluation and postoperative management are necessary in the case of recent KT with high risk of graft failure.
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1. College of Medicine (의과대학) > Dept. of Laboratory Medicine (진단검사의학교실) > 1. Journal Papers
Yonsei Authors
Park, Yong Jung(박용정) ORCID logo https://orcid.org/0000-0001-5668-4120
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