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Published on: October 23, 2020
Analysis of mortality risk from Korean hemodialysis registry data 2017
1Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Insights
This study analyzed mortality risk in Korean hemodialysis patients. Low body mass index, hemoglobin, albumin, phosphorus, and urea reduction ratio increased mortality risk, while high creatinine was paradoxically linked to lower risk.
Area of Science:
- Nephrology
- Public Health
- Clinical Epidemiology
Background:
- The Korean Society of Nephrology's registry collects dialysis data annually.
- Understanding mortality risk factors is crucial for improving patient outcomes in end-stage renal disease.
Purpose of the Study:
- To analyze the association between various clinical parameters and mortality risk in Korean hemodialysis patients.
- To describe the methods and clinical implications of mortality hazard ratio analyses from the 2017 registry report.
Main Methods:
- Utilized data from the 2017 End-stage Renal Disease Registry of Korea.
- Included 13,943 hemodialysis patients with laboratory data; 3,139 deaths were reported.
- Employed a non-linear Cox proportional hazard model with R statistics for univariate and multivariate analyses.
Main Results:
- Low body mass index, hemoglobin, serum albumin, serum phosphorus, and urea reduction ratio were significantly associated with increased mortality risk.
- Paradoxically, high serum creatinine levels were associated with a reduced mortality risk.
- Analyses included four additional parameters beyond the standard registry report.
Conclusions:
- Specific clinical parameters are strong predictors of mortality in Korean hemodialysis patients.
- The findings highlight the complex relationship between biochemical markers and survival in end-stage renal disease.
- These insights can inform clinical practice and public health strategies for dialysis patients.
Abstract:
The End-stage Renal Disease Registry Committee of the Korean Society of Nephrology collects data on the dialysis therapy in Korea through an internet-based registry program and reports it annually. In this article, the method and clinical implications of the mortality hazard ratio analyses of various clinical parameters in the 2017 registry report have been described, with the inclusion of data on four additional parameters. The mortality risk based on clinical parameters was analyzed only for hemodialysis patients. The number of registered patients with laboratory data was 13,943 (8,446 male and 5,497 female patients), and death was reported in 3,139 patients. Analysis of the effects of various clinical parameters on mortality was performed using non-linear Cox proportional hazard model with the R statistics program. For all clinical parameters, univariate and adjusted multivariate hazard ratio analyses were performed. Analysis of the mortality hazard ratio showed that low body mass index, low hemoglobin, low serum albumin, low serum phosphorus, and low urea reduction ratio were associated with a significantly increased mortality risk, whereas paradoxically high serum creatinine levels were associated with low mortality risk.
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