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- Title
Validation of a Complementary Food Frequency Questionnaire to assess infant nutrient intake.
- Authors
Judd, Amy L.; Beck, Kathryn L.; McKinlay, Christopher; Jackson, Ashleigh; Conlon, Cathryn A.
- Abstract
Dietary assessment in infants is challenging but necessary to understand the relationship between nutrition and growth and development. Currently no simple, validated methods exist to assess nutrient intake in New Zealand (NZ) infants. Therefore, this study aimed to assess the relative validity and reproducibility of a Complementary Food Frequency Questionnaire (CFFQ) to determine nutrient intakes of NZ infants. Ninety‐five parent–infant pairs (infant age 10 ± 1 months) completed the CFFQ twice (CFFQ‐1 and CFFQ‐2), 4 weeks apart (to assess reproducibility). A 4‐day weighed food record (4dWFR) was collected between CFFQ administrations (to assess validity). Validity and reproducibility were assessed for intakes of energy and 18 nutrients using Bland–Altman analysis, Pearson's correlation coefficients, cross‐classification, and weighted Kappa (κ). The CFFQ showed acceptable validity: Nutrients from the CFFQ were comparable with the 4dWFR (bias, 9–28%), correlation between methods ranged from r =.18 (saturated fat) to r =.81 (iron; mean r =.52), 54% (mean) of participants were correctly classified (range 39% to 67%), and 7.1% (mean) misclassified into opposite tertiles (range 2.1% to 14.7%). There was acceptable agreement between the CFFQ and 4dWFR (κ = 0.20–0.60). The CFFQ showed good reproducibility: Correlations ranged from r =.34 (folate) to r =.80 (zinc); for 16 nutrients, >50% of participants were correctly classified, and for all nutrients, <10% of participants were grossly misclassified. All nutrients showed acceptable to good agreement (κ > 0.20). The CFFQ has acceptable relative validity and good reproducibility for assessing nutrient intake in NZ infants aged 9–12 months, making it a useful tool for use in future research.
- Subjects
NEW Zealand; COMPARATIVE studies; STATISTICAL correlation; INFANT nutrition; INGESTION; RESEARCH methodology; NUTRITIONAL assessment; QUESTIONNAIRES; RESEARCH evaluation; STATISTICS; CROSS-sectional method; RESEARCH methodology evaluation; FOOD diaries; DATA analysis software; DESCRIPTIVE statistics; CHILDREN
- Publication
Maternal & Child Nutrition, 2020, Vol 16, Issue 1, pN.PAG
- ISSN
1740-8695
- Publication type
Article
- DOI
10.1111/mcn.12879