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Title: Evaluation of paper-based and web-based food frequency questionnaires for 7-year-old children in Singapore
Authors: Lai J.S.
Loh, J. 
Toh J.Y.
Sugianto R.
Colega M.T.
Tan K.H.
Yap, F. 
Chong, Y.S. 
Godfrey K.M.
Chong, M.F.F. 
Keywords: Child
Diet records
Food frequency questionnaire
Validation study
Issue Date: 2021
Publisher: Cambridge University Press
Citation: Lai J.S., Loh, J., Toh J.Y., Sugianto R., Colega M.T., Tan K.H., Yap, F., Chong, Y.S., Godfrey K.M., Chong, M.F.F. (2021). Evaluation of paper-based and web-based food frequency questionnaires for 7-year-old children in Singapore. British Journal of Nutrition. ScholarBank@NUS Repository.
Abstract: Advances in technology enabled the development of a web-based, pictorial food frequency questionnaire (FFQ) to collect parent-report dietary intakes of 7-year-old children in the GUSTO study. This study aimed to compare intakes estimated from a paper-FFQ and a web-FFQ, and examine the relative validity of both FFQs against 3-day diet records (3DDR). Ninety-two mothers reported food intakes of their 7-year-old child on a paper-FFQ, a web-FFQ and a 3DDR. A usability questionnaire collected participants' feedback on the web-FFQ. Correlations and agreement in energy, nutrients and food groups intakes between the dietary assessments were evaluated using Pearson's correlation, Lin's concordance, Bland-Altman plots, Cohen's kappa and tertile classification. The paper- and web-FFQ had good correlations (?0.50) and acceptable-good agreement (Lin's concordance ?0.30; Cohen's kappa ?0.41; ?50% correct and ?10% mis-classification into same or extreme tertiles). Compared to 3DDR, both FFQs showed poor agreement (<0.30) in assessing absolute intakes except micronutrients (web-FFQ had acceptable-good agreement); but showed acceptable-good ability to classify children into tertiles (??0.21; ?40% and ?15% correct or misclassification). Bland-Altman plots suggest good agreement between web-FFQ and 3DDR in assessing micronutrients and several food groups. The web-FFQ was well-received (e.g. >89% found it user-friendly), and majority (81%) preferred the web-FFQ over the paper-FFQ. The newly developed web-FFQ produced intake estimates comparable to the paper-FFQ, has acceptable-good agreement with 3DDR in assessing absolute micronutrients intakes, and acceptable-good ability to classify children according to categories of intakes. The positive acceptance of the web-FFQ makes it a feasible tool for future dietary data collection. © The Authors 2021.
Source Title: British Journal of Nutrition
ISSN: 00071145
DOI: 10.1017/S0007114521004517
Appears in Collections:Staff Publications

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