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Population-based association between urinary excretion of sodium, potassium and its ratio with albuminuria in Chinese
Journal article   Peer reviewed

Population-based association between urinary excretion of sodium, potassium and its ratio with albuminuria in Chinese

Liuxia Yan, Xiaolei Guo, Huicheng Wang, Jiyu Zhang, Junli Tang, Zilong Lu, Xiaoning Cai, Longjian Liu, Edward J Gracely and Jixiang Ma
Asia Pacific journal of clinical nutrition, v 25(4), pp 785-797
Dec 2016
PMID: 27702722

Abstract

Blood Pressure Body Mass Index Cardiovascular Diseases - urine Cross-Sectional Studies Humans Middle Aged Risk Factors Male Potassium, Dietary - administration & dosage Kidney Diseases - urine Sodium - urine China Potassium - urine Sex Factors Adult Female Sodium, Dietary - administration & dosage Albuminuria - urine
Albuminuria is a risk factor for cardiovascular and renal disease. However, little is known about the association of 24 h urinary sodium and potassium excretion with albuminuria in China. The aim of this study was to examine this association by analyzing the data from 1,975 Chinese adults living in north China. Excretion of urinary sodium, potassium and albumin was assessed in a single 24-h urine sample for each participant. Height, weight, waist circumference and blood pressure were measured and body mass index was determined as weight divided by square height. Fasting blood sample was collected and fasting glucose was measured. The average 24-h urinary sodium and potassium excretion were 232 mmol and 40.8 mmol, resulting a mean sodium to potassium ratio of 6.7. The median (Q1-Q3) 24-h urinary albuminuria excretion was 6.1 mg (4.5-8.7 mg). Overall, urinary sodium excretion was positively associated with albumin excretion (β=0.029, p<0.001). This association was independent of major cardiovascular risk factors including age, gender, systolic blood pressure, body mass index, fasting glucose, waist circumference, hypertensive drug treatment, and smoking. Moreover, the relation of sodium and albumin was similar in the subgroups stratified by gender, adiposity and diabetic status. No significant associations of potassium excretion or sodium to potassium ratio with urinary albumin excretion were observed. In cross-sectional analyses, high sodium intake was shown to be associated with increased urinary albuminuria in the general Chinese adult population, supporting salt restriction for renal and cardiovascular health benefit.

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Collaboration types
Domestic collaboration
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Web of Science research areas
Nutrition & Dietetics
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