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KMID : 0361120230370010029
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Korean Journal of Transplantation
2023 Volume.37 No. 1 p.29 ~ p.40
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Changes in socioeconomic status and patient outcomes in kidney transplantation recipients in South Korea
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Park Se-Hoon
Park Ji-Na
Jeong Ji-Hoon
Jang Yun-Young
Kim Yong-Chul
Kim Dong-Ki
Oh Kook-Hwan
Joo Kwon-Wook
Kim Yon-Su
Lee Ha-Jeong
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Abstract
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Background : Socioeconomic status is an important factor affecting the accessibility and prognosis of kidney transplantation. We aimed to investigate changes in kidney transplant recipients’ socioeconomic status in South Korea and whether such changes were associated with patient prognosis.
Methods : This retrospective nationwide o bservational c ohort s tudy i n S outh Korea included kidney transplant recipients between 2007 and 2016. South Korea provides a single-insurer health insurance service, and information on the socioeconomic status of the recipients is identifiable through the claims database. First, a generalized linear mixed model was used to investigate changes in recipients’ socioeconomic status as an outcome. Second, the risk of graft failure was analyzed using Cox regression as another outcome to investigate whether changes in socioeconomic status were associated with patient prognosis.
Results : Among the 15,215 kidney transplant recipients included in the study, economic levels (defined based on insurance fee percentiles) and employment rates declined within the first 2 years after transplantation. Beyond 2 years, the employment rate increased significantly, while no significant changes were observed in economic status. Patients whose economic status did not improve 3 years after kidney transplantation showed a higher risk of death than those whose status improved. When compared to those who remained employed after kidney transplantation, unemployment was associated with a significantly higher risk of death-censored graft failure.
Conclusions : The socioeconomic status of kidney transplant recipients changed dynamically after kidney transplantation, and these changes were associated with patient prognosis.
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KEYWORD
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Kidney transplant, Social class, Recipient, Prognosis, Allografts
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