Estimation of daily sodium and potassium excretion using spot urine and 24-hour urine samples in a black population (Benin).

Details

Serval ID
serval:BIB_9F4B3D42755B
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Estimation of daily sodium and potassium excretion using spot urine and 24-hour urine samples in a black population (Benin).
Journal
Journal of Clinical Hypertension (greenwich, Conn.)
Author(s)
Mizéhoun-Adissoda C., Houehanou C., Chianéa T., Dalmay F., Bigot A., Preux P.M., Bovet P., Houinato D., Desport J.C.
ISSN
1751-7176 (Electronic)
ISSN-L
1524-6175
Publication state
Published
Issued date
2016
Peer-reviewed
Oui
Volume
18
Number
7
Pages
634-640
Language
english
Abstract
The 24-hour urine collection method is considered the gold standard for the estimation of ingested potassium and sodium. Because of the impracticalities of collecting all urine over a 24-hour period, spot urine is often used for epidemiological investigations. This study aims to assess the agreement between spot urine and 24-hour urine measurements to determine sodium and potassium intake. A total of 402 participants aged 25 to 64 years were randomly selected in South Benin. Spot urine was taken during the second urination of the day. Twenty-four-hour urine was also collected. Samples (2-mL) were taken and then stored at -20°C. The analysis was carried out using potentiometric dosage. The agreement between spot urine and 24-hour urine measurements was established using Bland-Altman plots. A total of 354 results were analyzed. Daily sodium chloride and potassium chloride urinary excretion means were 10.2±4.9 g/24 h and 2.9±1.4 g/24 h, respectively. Estimated daily sodium chloride and potassium chloride means from the spot urine were 10.7±7.0 g/24 h and 3.9±2.1 g/24 h, respectively. Concordance coefficients were 0.61 at d=-0.5 g, (d±2SD=-11 g and 10.1 g) for sodium chloride and 0.61 at d=-1 g, (d±2SD=-3.8 g and 1.8 g) for potassium chloride. Spot urine method is acceptable for estimating 24-hour urinary sodium and potassium excretion to assess sodium and potassium intake in a black population. However, the confidence interval for the mean difference, which is too large, makes the sodium chloride results inadmissible at a clinical level.
Pubmed
Web of science
Create date
02/09/2016 8:10
Last modification date
20/08/2019 15:05
Usage data