Document Detail


A dietary iodine questionnaire: correlation with urinary iodine and food diaries.
MedLine Citation:
PMID:  17725433     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: It has been difficult to determine the sources of U.S. dietary iodine. This study was designed to validate a self-administered questionnaire about dietary iodine sources. DESIGN: We constructed a questionnaire to assess iodine intake in 46 healthy Boston-area adult volunteers. Questionnaire information was correlated with subjects' 24-hour food diaries. Spot morning urine cotinine (a metabolite of nicotine from cigarette smoking) and iodine concentrations were measured. MAIN OUTCOMES: 91% of 46 subjects were women [mean (+/- SD) age of 38 (+/- 10) years]. Information from 24-hour food diaries correlated well with questionnaire data. The median urinary iodine concentration (UIC) was 140 microg/L (range: 18-845 microg/L). There were significant positive associations between intake of yogurt (n = 9, p = 0.01) and saltwater fish (n = 6, p = 0.0003), and an inverse correlation between bagels (n = 5, p = 0.0006) and UIC. We found no associations between self-reported milk, iodized salt, tobacco use, or urinary cotinine and UIC. CONCLUSION: The questionnaire may not have been sufficiently comprehensive. Given the importance of adequate dietary iodine intake, particularly among women of childbearing age, further studies are warranted to determine important sources of dietary iodine in the United States.
Authors:
Angela M Leung; Lewis E Braverman; Elizabeth N Pearce
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Thyroid : official journal of the American Thyroid Association     Volume:  17     ISSN:  1050-7256     ISO Abbreviation:  Thyroid     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-08-29     Completed Date:  2008-08-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9104317     Medline TA:  Thyroid     Country:  United States    
Other Details:
Languages:  eng     Pagination:  755-62     Citation Subset:  IM    
Affiliation:
Section of Endocrinology, Diabetes, and Nutrition, Boston University Medical Center, Boston, Massachusetts, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Animals
Boston
Cereals
Cotinine / urine
Diet Records*
Female
Food Habits
Humans
Iodine / administration & dosage*,  urine*
Male
Middle Aged
Milk
Questionnaires*
Seafood
Smoking
Thyroid Diseases / prevention & control
Yogurt
Grant Support
ID/Acronym/Agency:
K23 DK064611/DK/NIDDK NIH HHS
Chemical
Reg. No./Substance:
486-56-6/Cotinine; 7553-56-2/Iodine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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