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Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Relative validation of a food frequency questionnaire to estimate food intake in an adult population
Authors: Steinemann, Nina
Grize, Leticia
Ziesemer, Katrin
Kauf, Peter
Probst-Hensch, Nicole
Brombach, Christine
DOI: 10.21256/zhaw-4121
Published in: Food & Nutrition Research
Volume(Issue): 61
Issue: 1305193
Page(s): 1305193
Issue Date: 2017
Publisher / Ed. Institution: Taylor & Francis
ISSN: 1654-6628
Language: English
Subjects: Food frequency questionnaire; Dietary assessment; Epidemiological studies; Food group intake; Nutrient intake; Validation study; Weighed food record
Subject (DDC): 000: Generalities and science
613.2: Dietetics
Abstract: Background: Scientifically valid descriptions of dietary intake at population level are crucial for investigating diet effects on health and disease. Food frequency questionnaires (FFQs) are the most common dietary tools used in large epidemiological studies. Objective: To examine the relative validity of a newly developed FFQ to be used as dietary assessment tool in epidemiological studies. Design: Validity was evaluated by comparing the FFQ and a 4-day weighed food record (4-d FR) at nutrient and food group levels, Spearman's correlations, Bland-Altman analysis and Wilcoxon rank sum tests were used. Fifty-six participants completed a paper format FFQ and a 4-d FR within 4 weeks. Results: Corrected correlations between the two instruments ranged from 0.27 (carbohydrates) to 0.55 (protein), and at food group level from 0.09 (soup) to 0.92 (alcohol). Nine out of 25 food groups showed correlations > 0.5, indicating moderate validity. More than half the food groups were overestimated in the FFQ, especially vegetables (82.8%) and fruits (56.3%). Water, tea and coffee were underestimated (-14.0%). Conclusions: The FFQ showed moderate relative validity for protein and the food groups fruits, egg, meat, sausage, nuts, salty snacks and beverages. This study supports the use of the FFQ as an acceptable tool for assessing nutrition as a health determinant in large epidemiological studies.
Fulltext version: Published version
License (according to publishing contract): CC BY 4.0: Attribution 4.0 International
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Food and Beverage Innovation (ILGI)
Published as part of the ZHAW project: Development of a web-based food frequency questionnaire
Appears in collections:Publikationen Life Sciences und Facility Management

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