Evaluation of Web-Based, Self-Administered, Graphical Food Frequency Questionnaire
نویسندگان
چکیده
منابع مشابه
Validity of a self-administered food-frequency questionnaire in the estimation of amino acid intake.
The objective of the present study was to evaluate the validity of a FFQ in the estimation of dietary amino acid intake. Amino acid intake was calculated using a composition database developed based on the Standard Tables of Food Composition for amino acids in Japan. Subjects were subsampled from two populations of the Japan Public Health Center-based Prospective Study who volunteered to partic...
متن کاملBiochemical validation of a self-administered semi-quantitative food-frequency questionnaire.
The present study is a biochemical validation of a food-frequency questionnaire (FFQ) with optical reading, i.e. containing food portion photographs to help to assess quantities. Forty-four healthy subjects, non-smokers and not taking vitamin supplements, were recruited for the study. After completion of the questionnaire, subjects were asked to keep a 7 d weighed dietary record (7DR). Three 24...
متن کاملDoes nutritionist review of a self-administered food frequency questionnaire improve data quality?
OBJECTIVE This study sought to evaluate the benefit of utilizing a nutritionist review of a self-administered food frequency questionnaire (FFQ), to determine whether accuracy could be improved beyond that produced by the self-administered questionnaire alone. DESIGN Participants randomized into a dietary intervention trial completed both a FFQ and a 4-day food record (FR) at baseline before ...
متن کاملUnderreporting of energy intake from a self-administered food-frequency questionnaire completed by adults in Montreal.
BACKGROUND Energy intake determined from self-reported dietary assessment methods may be underreported. Therefore, it is important that such methods be validated against another with known validity for energy intake or energy expenditure. METHODS We investigated potential underestimation of energy intake obtained from our semi-quantitative food-frequency questionnaire (FFQ) administered betwe...
متن کاملValidity of a self-administered food frequency questionnaire against 7-day dietary records in four seasons.
The validity of a food frequency questionnaire (FFQ) was evaluated against four 7-d diet records among 23 men aged 27-70 y. Volunteer women recorded the amounts of all foods and beverages consumed by their husbands or fathers over a period of 7 d in four consecutive seasons in 1997 and 1998, and a self-administered FFQ was answered by each man after completion of the fourth diet record. The die...
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ژورنال
عنوان ژورنال: Journal of the Academy of Nutrition and Dietetics
سال: 2014
ISSN: 2212-2672
DOI: 10.1016/j.jand.2013.11.017