Prevalence of iodine inadequacy in Switzerland assessed by the estimated average requirement cut-point method in relation to the impact of iodized salt.

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It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.
Serval ID
serval:BIB_DA413027D74B
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Prevalence of iodine inadequacy in Switzerland assessed by the estimated average requirement cut-point method in relation to the impact of iodized salt.
Journal
Public Health Nutrition
Author(s)
Haldimann M., Bochud M., Burnier M., Paccaud F., Dudler V.
ISSN
1475-2727 (Electronic)
ISSN-L
1368-9800
Publication state
Published
Issued date
2015
Peer-reviewed
Oui
Volume
18
Number
8
Pages
1333-1342
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
OBJECTIVE: To assess the iodine status of Swiss population groups and to evaluate the influence of iodized salt as a vector for iodine fortification.
DESIGN: The relationship between 24 h urinary iodine and Na excretions was assessed in the general population after correcting for confounders. Single-day intakes were estimated assuming that 92 % of dietary iodine was excreted in 24 h urine. Usual intake distributions were derived for male and female population groups after adjustment for within-subject variability. The estimated average requirement (EAR) cut-point method was applied as guidance to assess the inadequacy of the iodine supply.
SETTING: Public health strategies to reduce the dietary salt intake in the general population may affect its iodine supply.
SUBJECTS: The study population (1481 volunteers, aged ≥15 years) was randomly selected from three different linguistic regions of Switzerland.
RESULTS: The 24 h urine samples from 1420 participants were determined to be properly collected. Mean iodine intakes obtained for men (n 705) and women (n 715) were 179 (sd 68.1) µg/d and 138 (sd 57.8) µg/d, respectively. Urinary Na and Ca, and BMI were significantly and positively associated with higher iodine intake, as were men and non-smokers. Fifty-four per cent of the total iodine intake originated from iodized salt. The prevalence of inadequate iodine intake as estimated by the EAR cut-point method was 2 % for men and 14 % for women.
CONCLUSIONS: The estimated prevalence of inadequate iodine intake was within the optimal target range of 2-3 % for men, but not for women.
Keywords
Adult, Aged, Female, Humans, Iodine/administration & dosage, Iodine/deficiency, Linear Models, Male, Middle Aged, Nutritional Requirements, Nutritional Status, Prevalence, Sodium/urine, Sodium Chloride, Dietary/administration & dosage, Switzerland/epidemiology, Young Adult
Pubmed
Web of science
Open Access
Yes
Create date
22/05/2015 16:38
Last modification date
25/09/2019 6:10
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