Regular laboratory testing and patient survival among patients undergoing maintenance hemodialysis: a Korean nationwide cohort study

Abstract Routine laboratory tests are regularly performed in patients undergoing maintenance hemodialysis (HD) to detect anemia, chronic kidney disease-mineral bone disorders, and cardiovascular disease. More frequent laboratory tests may be associated with better outcomes. However, there is little...

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Main Authors: Do Hyoung Kim, AJin Cho, Hayne Cho Park, Bo Yeon Kim, Miri Lee, Gui Ok Kim, Jinseog Kim, Young-Ki Lee
Format: Article
Language:English
Published: Nature Portfolio 2023-10-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-45502-8
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author Do Hyoung Kim
AJin Cho
Hayne Cho Park
Bo Yeon Kim
Miri Lee
Gui Ok Kim
Jinseog Kim
Young-Ki Lee
author_facet Do Hyoung Kim
AJin Cho
Hayne Cho Park
Bo Yeon Kim
Miri Lee
Gui Ok Kim
Jinseog Kim
Young-Ki Lee
author_sort Do Hyoung Kim
collection DOAJ
description Abstract Routine laboratory tests are regularly performed in patients undergoing maintenance hemodialysis (HD) to detect anemia, chronic kidney disease-mineral bone disorders, and cardiovascular disease. More frequent laboratory tests may be associated with better outcomes. However, there is little evidence supporting a specific monitoring interval. This study evaluated the impact of regular laboratory testing on mortality in Korean patients undergoing maintenance HD. We used HD quality assessments, and National Health Insurance Service claims data from October to December 2015. In HD quality assessment, 22 tests are recommended every 1–6 months. A total of 34,950 patients were divided into two groups based on the regularity of laboratory testing. A Cox proportional hazards model was used to assess the effects of regular laboratory tests on patient mortality during a mean follow-up duration of 53.7 months. The proportion of patients with and without regular laboratory testing was 85.6% (n = 29,914) and 14.4% (n = 5036), respectively. Patients who underwent regular laboratory testing had a longer dialysis duration, lower serum phosphorus levels and diastolic blood pressure, and higher hemoglobin and single-pool Kt/V levels than those who did not. After adjusting for demographic and clinical parameters, regular laboratory testing independently reduced mortality risk (hazard ratio, 0.90; 95% confidence interval 0.85–0.95; P < 0.001). Regular laboratory testing was associated with a decreased mortality risk among patients undergoing HD. Management of end-stage kidney disease-related complications based on laboratory tests can improve survival.
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spelling doaj.art-0f41dc637c3c4095aab94cfb59e01c6e2023-10-29T12:21:32ZengNature PortfolioScientific Reports2045-23222023-10-011311810.1038/s41598-023-45502-8Regular laboratory testing and patient survival among patients undergoing maintenance hemodialysis: a Korean nationwide cohort studyDo Hyoung Kim0AJin Cho1Hayne Cho Park2Bo Yeon Kim3Miri Lee4Gui Ok Kim5Jinseog Kim6Young-Ki Lee7Department of Internal Medicine, Kangnam Sacred Heart Hospital, Hallym University College of MedicineDepartment of Internal Medicine, Kangnam Sacred Heart Hospital, Hallym University College of MedicineDepartment of Internal Medicine, Kangnam Sacred Heart Hospital, Hallym University College of MedicineHealthcare Review and Assessment Committee, Health Insurance Review and Assessment ServiceDivision of Quality Assessment 1, Health Insurance Review and Assessment ServiceDivision of Quality Assessment Management, Health Insurance Review and Assessment ServiceDepartment of Bigdata and Applied Statistics, Dongguk UniversityDepartment of Internal Medicine, Kangnam Sacred Heart Hospital, Hallym University College of MedicineAbstract Routine laboratory tests are regularly performed in patients undergoing maintenance hemodialysis (HD) to detect anemia, chronic kidney disease-mineral bone disorders, and cardiovascular disease. More frequent laboratory tests may be associated with better outcomes. However, there is little evidence supporting a specific monitoring interval. This study evaluated the impact of regular laboratory testing on mortality in Korean patients undergoing maintenance HD. We used HD quality assessments, and National Health Insurance Service claims data from October to December 2015. In HD quality assessment, 22 tests are recommended every 1–6 months. A total of 34,950 patients were divided into two groups based on the regularity of laboratory testing. A Cox proportional hazards model was used to assess the effects of regular laboratory tests on patient mortality during a mean follow-up duration of 53.7 months. The proportion of patients with and without regular laboratory testing was 85.6% (n = 29,914) and 14.4% (n = 5036), respectively. Patients who underwent regular laboratory testing had a longer dialysis duration, lower serum phosphorus levels and diastolic blood pressure, and higher hemoglobin and single-pool Kt/V levels than those who did not. After adjusting for demographic and clinical parameters, regular laboratory testing independently reduced mortality risk (hazard ratio, 0.90; 95% confidence interval 0.85–0.95; P < 0.001). Regular laboratory testing was associated with a decreased mortality risk among patients undergoing HD. Management of end-stage kidney disease-related complications based on laboratory tests can improve survival.https://doi.org/10.1038/s41598-023-45502-8
spellingShingle Do Hyoung Kim
AJin Cho
Hayne Cho Park
Bo Yeon Kim
Miri Lee
Gui Ok Kim
Jinseog Kim
Young-Ki Lee
Regular laboratory testing and patient survival among patients undergoing maintenance hemodialysis: a Korean nationwide cohort study
Scientific Reports
title Regular laboratory testing and patient survival among patients undergoing maintenance hemodialysis: a Korean nationwide cohort study
title_full Regular laboratory testing and patient survival among patients undergoing maintenance hemodialysis: a Korean nationwide cohort study
title_fullStr Regular laboratory testing and patient survival among patients undergoing maintenance hemodialysis: a Korean nationwide cohort study
title_full_unstemmed Regular laboratory testing and patient survival among patients undergoing maintenance hemodialysis: a Korean nationwide cohort study
title_short Regular laboratory testing and patient survival among patients undergoing maintenance hemodialysis: a Korean nationwide cohort study
title_sort regular laboratory testing and patient survival among patients undergoing maintenance hemodialysis a korean nationwide cohort study
url https://doi.org/10.1038/s41598-023-45502-8
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