Document Detail

The CAFE computer program for nutritional analysis of the EPIC-Norfolk food frequency questionnaire and identification of extreme nutrient values.
MedLine Citation:
PMID:  15788019     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Food frequency questionnaires (FFQs) are widely used in nutritional epidemiology but no papers detail the development of the supporting programs and nutritional databases. The principles involved in data collection, processing and treatment of the European Prospective Investigation into Cancer Study (EPIC)-Norfolk Study FFQ and development of the structure and content of the Compositional Analyses from Frequency Estimates (CAFE) program for calculating nutrient intakes are described. Extreme nutrient values and derivation of cut-points for data exclusion are also discussed. METHODS: The FFQ was sent to 25,637 participants. To exclude extreme (nonphysiological) outliers of nutrient intakes, the extreme top and bottom 0.5% of the ratio of energy intake to estimated basal metabolic rate was used. RESULTS: The CAFE computer program modifies nutrient intake according to specific fats used in food preparation and the amount of visible fat on meat. It incorporates different breakfast cereals and distinguishes between text for brands and types. After exclusion of outliers of nutrient intake some extreme values remained for energy, carbohydrate, protein, fat and alcohol, because of high reported frequencies of certain foods. CONCLUSIONS: The features of CAFE include flexible, updateable, databases and a novel method for matching text. The effect of extreme nutrient values on the accuracy of the FFQ in estimating diet in nutritional epidemiology should be investigated further.
A A Welch; R Luben; K T Khaw; S A Bingham
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of human nutrition and dietetics : the official journal of the British Dietetic Association     Volume:  18     ISSN:  0952-3871     ISO Abbreviation:  J Hum Nutr Diet     Publication Date:  2005 Apr 
Date Detail:
Created Date:  2005-03-24     Completed Date:  2005-06-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8904840     Medline TA:  J Hum Nutr Diet     Country:  England    
Other Details:
Languages:  eng     Pagination:  99-116     Citation Subset:  IM    
Department of Public Health and Primary Care, University of Cambridge, Strangeways Site, Wort's Causeway, Cambridge, UK.
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MeSH Terms
Alcohol Drinking
Diet Records*
Dietary Carbohydrates / administration & dosage
Dietary Fats / administration & dosage
Dietary Proteins / administration & dosage
Energy Intake
Food Handling / methods
Middle Aged
Nutrition Assessment*
Nutritive Value*
Prospective Studies
Reg. No./Substance:
0/Dietary Carbohydrates; 0/Dietary Fats; 0/Dietary Proteins

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