Authors: Yi SS, Curtis CJ, Angell SY, Anderson CA, Jung M, Kansagra SM
Citation: Public Health Nutr 2014 Nov;17(11):2484-8
PMID : 24950118, Journal: Public Health Nutr, 17, 11
Date created: 2014-09-24
OBJECTIVE: To contrast mean values of Na:K with Na and K mean intakes by demographic factors, and to calculate the prevalence of New York City (NYC) adults meeting the WHO guideline for optimal Na:K (<1 mmol/mmol, i.e. <0·59 mg/mg) using 24 h urinary values.
DESIGN: Data were from the 2010 Community Health Survey Heart Follow-Up Study, a population-based, representative study including data from 24 h urine collections.
SETTING: Participants were interviewed using a dual-frame sample design consisting of random-digit dial telephone exchanges that cover NYC. Data were weighted to be representative of NYC adults as a whole.
SUBJECTS: The final sample of 1656 adults provided 24 h urine collections and self-reported health data.
RESULTS: Mean Na:K in NYC adults was 1·7 mg/mg. Elevated Na:K was observed in young, minority, low-education and high-poverty adults. Only 5·2 % of NYC adults had Na:K in the optimal range.
CONCLUSIONS: Na intake is high and K intake is low in NYC adults, leading to high Na:K. Na:K is a useful marker and its inclusion for nutrition surveillance in populations, in addition to Na and K intakes, is indicated.