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Validation of a food frequency questionnaire for assessing dietary nutrients in Brazilian children 5 to 10 years of age.
Nutrition. 2008 May; 24(5):427-32.N

Abstract

OBJECTIVE

This study aimed to assess the relative validity of a food frequency questionnaire (FFQ), previously validated to measure usual intakes in adults, for measuring dietary intakes in children 5 to 10 y of age.

METHODS

Dietary intakes were measured using an FFQ and a 3-d dietary record. Healthy children, 5 to 10 y old (n = 151), were recruited from public schools and asked to answer the questions in the FFQ and to provide non-consecutive 3-d dietary records based on reported estimated portion sizes. Paired sample t tests and Pearson's correlation coefficients were conducted to determine whether the two instruments reported similar values for energy and nutrients. The agreement of quartile categorization between the two instruments was also examined.

RESULTS

Estimated energy and nutrient intakes derived from the FFQ were significantly higher than those derived from 3-d dietary records. As expected, Pearson's correlations increased after adjusting for residual measurement error, presumably due to exclusion of the high within-person variability in intake of these nutrients. Moderate to high (r > 0.50) correlation coefficients were verified for some nutrients such as calcium, folate, vitamin B2, vitamin A, and vitamin C.

CONCLUSION

This FFQ, originally developed for use in adults, appears to overestimate usual energy and nutrient intakes in children 5 to 10 y of age. Further work is necessary to conduct a calibration study to establish adequate portion sizes before instrument adoption in this population.

Authors+Show Affiliations

Faculty of Pharmaceutics Sciences-Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Validation Study

Language

eng

PubMed ID

18343639

Citation

Fumagalli, Fernanda, et al. "Validation of a Food Frequency Questionnaire for Assessing Dietary Nutrients in Brazilian Children 5 to 10 Years of Age." Nutrition (Burbank, Los Angeles County, Calif.), vol. 24, no. 5, 2008, pp. 427-32.
Fumagalli F, Pontes Monteiro J, Sartorelli DS, et al. Validation of a food frequency questionnaire for assessing dietary nutrients in Brazilian children 5 to 10 years of age. Nutrition. 2008;24(5):427-32.
Fumagalli, F., Pontes Monteiro, J., Sartorelli, D. S., Vieira, M. N., & de Lourdes Pires Bianchi, M. (2008). Validation of a food frequency questionnaire for assessing dietary nutrients in Brazilian children 5 to 10 years of age. Nutrition (Burbank, Los Angeles County, Calif.), 24(5), 427-32. https://doi.org/10.1016/j.nut.2008.01.008
Fumagalli F, et al. Validation of a Food Frequency Questionnaire for Assessing Dietary Nutrients in Brazilian Children 5 to 10 Years of Age. Nutrition. 2008;24(5):427-32. PubMed PMID: 18343639.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Validation of a food frequency questionnaire for assessing dietary nutrients in Brazilian children 5 to 10 years of age. AU - Fumagalli,Fernanda, AU - Pontes Monteiro,Jacqueline, AU - Sartorelli,Daniela Saes, AU - Vieira,Marta Neves Campanelli Marçal, AU - de Lourdes Pires Bianchi,Maria, Y1 - 2008/03/17/ PY - 2007/08/06/received PY - 2007/12/26/revised PY - 2008/01/07/accepted PY - 2008/3/18/pubmed PY - 2008/8/12/medline PY - 2008/3/18/entrez SP - 427 EP - 32 JF - Nutrition (Burbank, Los Angeles County, Calif.) JO - Nutrition VL - 24 IS - 5 N2 - OBJECTIVE: This study aimed to assess the relative validity of a food frequency questionnaire (FFQ), previously validated to measure usual intakes in adults, for measuring dietary intakes in children 5 to 10 y of age. METHODS: Dietary intakes were measured using an FFQ and a 3-d dietary record. Healthy children, 5 to 10 y old (n = 151), were recruited from public schools and asked to answer the questions in the FFQ and to provide non-consecutive 3-d dietary records based on reported estimated portion sizes. Paired sample t tests and Pearson's correlation coefficients were conducted to determine whether the two instruments reported similar values for energy and nutrients. The agreement of quartile categorization between the two instruments was also examined. RESULTS: Estimated energy and nutrient intakes derived from the FFQ were significantly higher than those derived from 3-d dietary records. As expected, Pearson's correlations increased after adjusting for residual measurement error, presumably due to exclusion of the high within-person variability in intake of these nutrients. Moderate to high (r > 0.50) correlation coefficients were verified for some nutrients such as calcium, folate, vitamin B2, vitamin A, and vitamin C. CONCLUSION: This FFQ, originally developed for use in adults, appears to overestimate usual energy and nutrient intakes in children 5 to 10 y of age. Further work is necessary to conduct a calibration study to establish adequate portion sizes before instrument adoption in this population. SN - 0899-9007 UR - https://www.unboundmedicine.com/medline/citation/18343639/Validation_of_a_food_frequency_questionnaire_for_assessing_dietary_nutrients_in_Brazilian_children_5_to_10_years_of_age_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0899-9007(08)00031-2 DB - PRIME DP - Unbound Medicine ER -