Document Detail


The influence of survey duration on estimates of food intakes and its relevance for public health nutrition and food safety issues.
MedLine Citation:
PMID:  10694789     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To examine the influence of food consumption survey duration on estimates of percentage consumers, mean total population intakes and intakes among consumers only and to consider its relevance for public health nutrition and food safety issues. DESIGN: Prospective food consumption survey. SETTING: A multicentre study in five centres in the European Union-Dublin, Ghent, Helsinki, Potsdam and Rome. SUBJECTS: Teenage subjects were recruited through schools; 948 (80%) out of 1180 subjects completed the survey. INTERVENTIONS: 14-day food diaries were used to collect the food consumption data. RESULTS: For mean total population intakes, 53% of the foods had slopes significantly different to 0 (P<0.05). In practical terms (g/day), these differences were small, with 41% of foods having differences of </=1 g/day and a further 35% having differences of 1-5 g/day. Estimates of percentage consumers based on 3 days and 14 days were 1.9 and 3.6 times the 1-day estimate, respectively. For 72% of foods, at least 50% of non-consumers on day 1 became consumers over the subsequent 13 days. Estimates of mean consumer only intakes based on 3 days and 14 days were 53% and 32% of the 1 day value. CONCLUSION: In practical terms, survey duration influences estimates of percentage consumers and intakes among consumers only but not mean total population intakes. Awareness of this influence is important for improved interpretation of dietary data for epidemiological studies, development of food-based dietary guidelines and food chemical intakes. SPONSORSHIP: The Institute of European Food Studies, a non-profit research organization based in Trinity College Dublin. European Journal of Clinical Nutrition (2000) 54, 166-173
Authors:
J Lambe; J Kearney; C Leclercq; H F Zunft; S De Henauw; C J Lamberg-Allardt; A Dunne; M J Gibney
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European journal of clinical nutrition     Volume:  54     ISSN:  0954-3007     ISO Abbreviation:  Eur J Clin Nutr     Publication Date:  2000 Feb 
Date Detail:
Created Date:  2000-03-31     Completed Date:  2000-03-31     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8804070     Medline TA:  Eur J Clin Nutr     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  166-73     Citation Subset:  IM    
Affiliation:
Institute of European Food Studies, Biotechnology Institute, Trinity College, Dublin 2, Ireland. iefs@iefs.ie
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Body Mass Index
Child
Diet Records
Diet Surveys*
Energy Intake
Europe
Female
Food*
Humans
Male
Nutritional Physiological Phenomena*
Prospective Studies
Public Health*
Safety
Time Factors

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


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