Document Detail

Development and simulated validation of a food-frequency questionnaire for the Colombian population.
MedLine Citation:
PMID:  15877911     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To develop a food-frequency questionnaire (FFQ) useful for ranking of nutrient intakes. DESIGN: Subjects consuming their regular diet completed 7 days of weighed intake registry (7-WIR). Foods for the FFQ were selected by stepwise multiple regression. The FFQ was then completed for each subject using data on individual food consumption from the 7-WIR. The correlation and agreement between the extrapolated FFQ and the 7-WIR data were assessed using Spearman's rank correlation coefficients (rS) and Bland and Altman's limits of agreement (LOA). SETTING: Bucaramanga, Colombia. SUBJECTS: We studied 97 randomly selected 20-40-year-old subjects. RESULTS: Sixty foods were selected for the FFQ. The 7-WIR and the extrapolated FFQ intake estimates correlated well. rS was 0.58 for energy, 0.53 for carbohydrate, 0.50 for total fat, and 0.48 for protein. For micronutrients, rS varied from 0.46 (manganese) to 0.71 (vitamin B12). FFQ average intake estimates were 83%, 80%, 86.2% and 86.4% of 7-WIR estimates for energy, carbohydrate, total fat and protein, respectively. LOA for these nutrients ranged between 45% and 165%. FFQ micronutrient intakes were on average 96% (median) of those from the 7-WIR, and the median lower and upper LOA were 50% and 203%. However, there was no indication that the degree of agreement varied with the level of intake. CONCLUSIONS: According to our simulated validation, this FFQ may be useful to rank subjects by nutrient intake. Its validity against standard independent measurements and its applicability to other subsets of the Colombian population should be carefully considered.
Leonelo E Bautista; Oscar F Herrán; Jane A Pryer
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies    
Journal Detail:
Title:  Public health nutrition     Volume:  8     ISSN:  1368-9800     ISO Abbreviation:  Public Health Nutr     Publication Date:  2005 Apr 
Date Detail:
Created Date:  2005-05-09     Completed Date:  2005-06-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9808463     Medline TA:  Public Health Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  181-8     Citation Subset:  IM    
Centro de Investigación Epidemiológica, Observatorio Epidemiológico de Enfermedades Cardiovasculares, Universidad Industrial de Santander, Bucaramanga, Colombia.
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MeSH Terms
Diet Records
Diet Surveys*
Dietary Carbohydrates / administration & dosage
Dietary Fats / administration & dosage
Dietary Proteins / administration & dosage
Energy Intake
Micronutrients / administration & dosage
Nutrition Assessment*
Questionnaires / standards*
Regression Analysis
Reproducibility of Results
Sensitivity and Specificity
Reg. No./Substance:
0/Dietary Carbohydrates; 0/Dietary Fats; 0/Dietary Proteins; 0/Micronutrients

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