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Association Between Serum Potassium and Risk of All-Cause Mortality Among Chronic Kidney Diseases Patients: A Systematic Review and Dose–Response Meta-Analysis of More Than One Million Participants Publisher



Sorraya N1 ; Farrokhzad A2 ; Hassani B3, 4 ; Talebi S5
Authors

Source: Food Science and Nutrition Published:2021


Abstract

We aimed to perform a meta-analysis, using prospective cohort studies, to test the association between serum potassium and all-cause mortality among chronic kidney diseases (CKD) patients. A systematic search was performed using PubMed-MEDLINE and Scopus, up to July 2020. Prospective cohort studies which reported risk estimates of all-cause mortality in CKD patients with different serum potassium levels were included in the present meta-analysis. Thirteen studies were included in the analysis. A nonlinear dose–response meta-analysis suggested that there is a J-shaped association between serum potassium levels and the risk of all-cause mortality, with a nadir at serum potassium of 4.5 mmol/L. Subgroup analyses indicated that the strength and shape of the association between serum potassium and all-cause mortality may be influenced by age. Our meta-analysis provides supportive evidence that there is a J-shape association between serum potassium and all-cause mortality among CKD patients. © 2021 The Authors. Food Science & Nutrition published by Wiley Periodicals LLC.
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