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Relative validation of a food frequency questionnaire to estimate food intake in an adult population

Steinemann, Nina and Grize, Leticia and Ziesemer, Katrin and Kauf, Peter and Probst-Hensch, Nicole and Brombach, Christine. (2017) Relative validation of a food frequency questionnaire to estimate food intake in an adult population. Food & nutrition research, 61 (1). p. 1305193.

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Official URL: http://edoc.unibas.ch/55426/

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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.
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Epidemiology and Public Health (EPH) > Chronic Disease Epidemiology > Genetic Epidemiology of Non-Communicable Diseases (Probst-Hensch)
03 Faculty of Medicine > Departement Public Health > Sozial- und Präventivmedizin > Genetic Epidemiology of Non-Communicable Diseases (Probst-Hensch)
09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH)
UniBasel Contributors:Grize, Leticia and Probst Hensch, Nicole
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Co-Action Publishing
ISSN:1654-6628
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:14 Jun 2017 14:46
Deposited On:14 Jun 2017 14:46

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