Development and simulated validation of a food-frequency questionnaire for the Colombian population

Public Health Nutrition

Jane A Pryer¹  Oscar F Herrán¹  Leonelo E Bautista¹ 

关键词: Nutritional assessment;    Food-frequency questionnaire;    Weighed food registry;    Colombia;   

DOI  :  10.1079/PHN2004672

学科分类：卫生学

来源: Cambridge University Press

【 摘 要 】

ObjectiveTo develop a food-frequency questionnaire (FFQ) useful for ranking of nutrient intakes.DesignSubjects 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).SettingBucaramanga, Colombia.SubjectsWe studied 97 randomly selected 20–40-year-old subjects.ResultsSixty 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.ConclusionsAccording 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.

【 授权许可】

Unknown