title: [Not Available].
abstract: Introduction: The assessment of intake and eating habits become increasingly important to relate them to the risk of disease. In this sense, food frequency questionnaires (FFQ) are a common dietary tool used in both clinical practice and nutritional epidemiological studies. Objective: The aim of the study was the validation of a food groups frequency questionnaire (FGFQ) based on an exchange system, in relation to a 7 days food record (FR) used as reference. Methods: A total of 60 healthy adults (males and females) were recruited. To each one a dietitian applied the FGFQ to be validated and then gave instructions for completing the 7 days FR used as a reference standard. Energy and macronutrient distribution were calculated for both methods and appropriate statistical methods were applied. Results: The correlation coeffi cients comparing methods were found between r = 0.3 and r = 0.6 (p < 0.01), and the intraclass correlation coeffi cient between r = 0.2 and r = 0.6 (p < 0.01). The cross-classifi cation analysis revealed that over 80% of individuals were classifi ed into identical and contiguous quartiles from both dietary methods. Conclusions: The proposed FGFQ, based on an exchange system of 19 groups, has obtained comparable results to other similar models for assessing of energy and macronutrient distribution with a more rapid outcome.
authors.affiliation: Departamento de Ciencias de la Alimentación y Fisiología. Universidad de Navarra. La Rioja. jalfmtz@unav.es.
authors.forename: Leticia
authors.initials: L
authors.lastname: Goni
authors.forename: Maritza
authors.initials: M
authors.lastname: Aray Miranda
authors.forename: J. Alfredo
authors.initials: JA
authors.lastname: Martínez
authors.forename: Marta
authors.initials: M
authors.lastname: Cuervo
mesh_terms: D000328:Adult; D004034:Diet Surveys / Q000379:methods; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: Validation; Food groups frequency questionnaire (FGFQ); Dietary record method; Dietary assessment; Nutrients