Difference between 24-h diet recall and urine excretion for assessing population sodium and potassium intake in adults aged 18-39 y.

ABSTRACT:

Background

Limited data are available on the accuracy of 24-h dietary recalls used to monitor US sodium and potassium intakes.

Objective

We examined the difference in usual sodium and potassium intakes estimated from 24-h dietary recalls and urine collections.

Design

We used data from a cross-sectional study in 402 participants aged 18-39 y (∼50% African American) in the Washington, DC, metropolitan area in 2011. We estimated means and percentiles of usual intakes of daily dietary sodium (dNa) and potassium (dK) and 24-h urine excretion of sodium (uNa) and potassium (uK). We examined Spearman's correlations and differences between estimates from dietary and urine measures. Multiple linear regressions were used to evaluate the factors associated with the difference bet

SUBMITTER: Mercado CI 

PROVIDER: S-EPMC4307208 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature