Urine Potassium Linked to Mortality, but Not Kidney Failure Risk

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In patients with chronic kidney disease (CKD), higher urine potassium excretion—as a surrogate for dietary potassium intake—is associated with a lower risk of death but no difference in the risk of kidney failure, reports a study in American Journal of Kidney Diseases.

The study was a post hoc analysis of 812 participants from the Modification of Diet in Renal Disease study. That trial, performed between 1989 and 1993, analyzed the effects of blood pressure control and dietary protein restriction on progression of stage 2 to 4 CKD. The current study analyzed the association of 24-hour urine potassium excretion,

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