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Page: 56
Volume 28, Issue 3(201) 2018
The validity of spot urine estimated sodium excretion among adult Vietnamese
Author: Tran Quoc Bao, Paul NJensen, Tran Thi Thanh Huong, Annette LFitzpatrick, Ali HMokdad, James PLoGerfo, Bernadette Thomas, Truong Le Van Ngoc and Susan R Heckbert
Summary:
The gold standard method for estimating salt intake in population-based studies is 24-hour urine collection; however, sample collection is challenging. While spot urine is a practical alternative, little is known about its validity in resource-limited settings. The purpose of this analysis was to evaluate the validity of spot urine based estimates of daily sodium excretion compared with 24-hour urine collection measurements in Vietnam. Mid-morning spot urine samples and 24-hour urine collections were obtained in 2010 from a sample of adult Vietnamese. We estimated daily sodium excretion from spot urine samples and the correlation between the two measures was assessed using Pearson correlation coefficients and Bland-Altman plots. The analysis included 146 individuals 25-64 years of age (mean age: 44 years). Daily sodium excretion estimates from mid-morning spot urine samples were moderately correlated with the amount of sodium in 24-hour urine collections (ρ = 0.34-0.35). The correlation was higher for women than for men. Compared with the gold standard (mean Na: 188 mmol/day; 11g salt/day), Tanaka estimates were slightly lower (165 mmol/day) while Kawasaki provided higher estimates (216 mmol/day). Spot urine estimates correctly identified ≥98% of participants who exceeded the World Health Organization’s recommended limit of 85-100mmol of sodium per day. Spot urine samples may provide a useful tool for estimating salt consumption and identifying targets for salt reduction interventions in settings where 24-hour urine collections are not feasible
Keywords:
sodium chloride, dietary, table salt, urine
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8. Tran Quoc Bao.pdf
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Happy New Year 2019! Year of the Pig
The Vietnam Journal of Preventive Medicine wish all readers with healthy, happiness and prosperity in the year of the Pig. Happy New Year 2019
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