Document Detail

The influence of survey duration on estimates of food intakes--relevance for food-based dietary guidelines.
MedLine Citation:
PMID:  10999039     Owner:  NLM     Status:  MEDLINE    
Development of food-based dietary guidelines relies on correct identification and interpretation of current dietary intake patterns. The process involves assessing which foods discriminate between those with desirable and undesirable intakes of particular nutrients. It is therefore important that those involved in this task are aware of any source of variability in the underlying food consumption data that cannot be attributed to true differences between individuals. A short survey duration can introduce a high degree of within-person variation and not reflect usual or more long-term food or nutrient intakes. As survey duration increases, the % consumers identified by a survey increases and the intakes among consumers only decrease while the total population intakes do not change. A short survey duration may also lead to misclassification of individuals into high and low consumers. Survey duration is therefore an issue that should be considered in the interpretation of dietary data when developing food-based dietary guidelines.
J Lambe; J Kearney
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The British journal of nutrition     Volume:  81 Suppl 2     ISSN:  0007-1145     ISO Abbreviation:  Br. J. Nutr.     Publication Date:  1999 Apr 
Date Detail:
Created Date:  2000-09-28     Completed Date:  2000-09-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0372547     Medline TA:  Br J Nutr     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  S139-42     Citation Subset:  IM    
Institute of European Food Studies, Trinity College, Dublin, Ireland.
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MeSH Terms
Diet Surveys*
Food Habits*
Nutrition Policy*
Sensitivity and Specificity
Time Factors

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

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