| Titre |
Estimation of Daily Sodium and Potassium Excretion Using Spot Urine and 24-Hour Urine Samples in a Black Population (Benin) |
| Auteurs |
Mizéhoun-Adissoda Carmelle [1],
HOUEHANOU-SONOU CORINE [2],
Chianea Thierry [3],
Dalmay François [4],
Bigot André K. [5],
Preux Pierre-Marie [6],
Bovet Pascal [7],
Houinato Dismand [8],
Desport Jean-Claude [9],
|
| Journal: |
The Journal of Clinical Hypertension |
| Catégorie Journal: |
Internationale |
| Impact factor: |
0 |
| Volume Journal: |
18 |
| DOI: |
10.1111/jch.12722 |
| Resume |
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. |
| Mots clés |
Estimation, Sodium, Potassium |
| Pages |
634 - 640 |
| Fichier |
|