Validity of a Short Food Frequency Questionnaire for Toddlers of NELA Birth Cohort Study
- PMID: 39771024
- PMCID: PMC11677162
- DOI: 10.3390/nu16244403
Validity of a Short Food Frequency Questionnaire for Toddlers of NELA Birth Cohort Study
Abstract
Background/objectives: Our aim was to evaluate the reproducibility and validity of a semi-quantitative food frequency questionnaire (FFQ) for the assessment of usual nutrient and food intakes in children of 18 months old.
Methods: We included 103 toddlers aged 18 months from the Nutrition in Early Life and Asthma (NELA) birth cohort study. A 47-item FFQ was administered twice to parents with a 3-month interval. During that period, we also performed three non-consecutive 24 h dietary recalls (24hDRs) and oral mucosa samples for determining the fatty acid profile (glycerophospholipids). We estimated correlation coefficients of reproducibility for nutrient and food group intakes by comparing both FFQs and validity coefficients by comparing nutrient intakes between the second FFQ and the average of the three 24hDRs. We also explored biochemical validity by comparing the intake of fish from the FFQ with the percentage of fatty acids in oral mucosa cells.
Results: The average of correlation coefficients for FFQ reproducibility was r = 0.48 for energy-adjusted nutrient intakes (ranging from r = 0.28 for Na to r = 0.62 for Mg and Zn) and r = 0.35 for the intake of energy-adjusted food groups. The average correlation coefficient for FFQ validity on nutrient intakes was r = 0.48, ranging from r = 0.16 for α-carotene to r = 0.75 for vitamin E. We also found a positive correlation between total omega-3 fatty acids and docosahexaenoic acid percentages in oral mucosa cells and the intake of total and white fish, r = 0.31 and r = 0.34, respectively.
Conclusions: This study shows that our short FFQ demonstrated moderate reproducibility (mean r = 0.48) and validity (mean r = 0.48) for dietary assessment of most nutrients and foods in 18-month-old children in Spain. This FFQ provides an efficient and minimally invasive method for evaluating toddler dietary intake, particularly in Mediterranean contexts.
Keywords: food frequency questionnaire; food groups; intakes; nutrients; reproducibility; toddler; validity.
Conflict of interest statement
The authors declare no conflicts of interest.
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References
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- Ortiz-Andrellucchi A., Henríquez-Sánchez P., Sánchez-Villegas A., Peña-Quintana L., Mendez M., Serra-Majem L. Dietary Assessment Methods for Micronutrient Intake in Infants, Children and Adolescents: A Systematic Review. Br. J. Nutr. 2009;102((Suppl. S1)):S87–S117. doi: 10.1017/S0007114509993163. - DOI - PubMed
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- Willett W. Nutritional Epidemiology. 3rd ed. Oxford University Press; Oxford, UK: New York, NY, USA: 2012.
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- 21871/PI/22/Instituto Murciano de Investigación Biosanitaria
- RICOR SAMID III, RD21/0012/0002/Maternal and Child Health and Development Research Network
- CP14/00046, PIE15/00051, PI16/ 00422, PI19/00863/Instituto de Salud Carlos III
- RD160006/ARADyAL network
- ESP24PI02/2024/Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública
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