Estimation of Daily @entity1372 and XXXX Excretion Using Spot Urine and 24-Hour Urine Samples in a Black Population (Benin).

@entity1 @entity1372 @entity972 @entity2827 @entity4337
UNASSIGNED: The 24-hour urine collection method is considered the gold standard for the estimation of ingested @entity972 and @entity1372 . 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 @entity1372 and @entity972 intake. A total of 402 @entity1 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 @entity2827 and @entity4337 urinary excretion means were 10.2  4.9 g/24 h and 2.9  1.4 g/24 h, respectively. Estimated daily @entity2827 and @entity4337 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 @entity2827 and 0.61 at d=-1 g, (d  2SD=-3.8 g and 1.8 g) for @entity4337 . Spot urine method is acceptable for estimating 24-hour urinary @entity1372 and @entity972 excretion to assess @entity1372 and @entity972 intake in a black population. However, the confidence interval for the mean difference, which is too large, makes the @entity2827 results inadmissible at a clinical level.
