Relative validity and reproducibility of a food frequency questionnaire to assess nutrients and food groups of relevance to the gut microbiota in young children

Leong, Claudia, Taylor, Rachael W, Haszard, Jillian J, Fleming, Elizabeth A, Tannock, Gerald W, Szymlek-Gay, Ewa A, Cameron, Sonya L, Yu, Renee, Carter, Harriet, Chee, Li Kee, Kennedy, Lucy, Moore, Robyn and Heath, Anne-Louise M 2018, Relative validity and reproducibility of a food frequency questionnaire to assess nutrients and food groups of relevance to the gut microbiota in young children, Nutrients, vol. 10, no. 11, pp. 1-15, doi: 10.3390/nu10111627.

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Title Relative validity and reproducibility of a food frequency questionnaire to assess nutrients and food groups of relevance to the gut microbiota in young children
Author(s) Leong, Claudia
Taylor, Rachael W
Haszard, Jillian J
Fleming, Elizabeth A
Tannock, Gerald W
Szymlek-Gay, Ewa AORCID iD for Szymlek-Gay, Ewa A orcid.org/0000-0002-6533-7945
Cameron, Sonya L
Yu, Renee
Carter, Harriet
Chee, Li Kee
Kennedy, Lucy
Moore, Robyn
Heath, Anne-Louise M
Journal name Nutrients
Volume number 10
Issue number 11
Article ID 1627
Start page 1
End page 15
Total pages 15
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2018-11-02
ISSN 2072-6643
Keyword(s) food frequency questionnaire
dietary fiber
microbiota
validity
reproducibility
children
New Zealand
gastrointestinal microbiome
nutrients
science & technology
life sciences & biomedicine
nutrition & dietetics
Summary Dietary fiber is an important nutrient for the gut microbiota, with different fiber fractions having different effects. The aim of this study was to determine the relative validity and reproducibility of a food frequency questionnaire (EAT5 FFQ) for measuring intake of fiber, and low and high fiber foods, in studies examining diet and gut microbiota in young children. One hundred parents of 5-year old children completed the 123-item EAT5 FFQ on two occasions four weeks apart. A 3-day weighed diet record (WDR) was completed on non-consecutive days between FFQ appointments. Mean correlations between the (randomly chosen) FFQ and WDR were acceptable for nutrient and food group intakes (r = 0.34 and r = 0.41 respectively). Gross misclassification was below chance (12.5%) for quartiles of nutrient (mean 5.7%) and food group (mean 5.1%) intake. 'Absolute values for surrogate categories' suggested the FFQ clearly differentiated between highest and lowest quartiles for all nutrients and food groups tested. Mean correlations between repeat administrations of the FFQ suggested very good reproducibility for nutrients (r = 0.83) and food groups (r = 0.80). The EAT5 FFQ appears to be an appropriate tool for investigating the intake of nutrients and food groups of relevance to the gut microbiota, and is the first FFQ validated to measure total, soluble and insoluble non-starch polysaccharide intakes in young children.
Language eng
DOI 10.3390/nu10111627
Field of Research 1111 Nutrition And Dietetics
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2018, the authors
Persistent URL http://hdl.handle.net/10536/DRO/DU:30115635

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