Validation of a food frequency questionnaire for children and adolescents aged 4 to 11 years living in Salvador, Bahia.


Matos, SM; Prado, MS; Santos, CA; D'Innocenzo, S; Assis, AM; Dourado, LS; Oliveira, NS; Rodrigues, LC; Barreto, ML; (2012) Validation of a food frequency questionnaire for children and adolescents aged 4 to 11 years living in Salvador, Bahia. Nutricion hospitalaria, 27 (4). pp. 1114-9. ISSN 0212-1611 DOI: https://doi.org/10.3305/nh.2012.27.4.5883

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Abstract

: Objective: To assess the validity of a food frequency questionnaire (FFQ) by applying it to children and adolescents living in Salvador, Bahia. Methods: The validity of this FFQ with 98 food items was investigated among 108 children and adolescents who were selected from a sample of 1445 that had been planned for a study on the risk factors for asthma and other allergic diseases. The adults responsible for these children and adolescents gave responses for a 24-hour recall (R24h) and an FFQ. The average energy and nutrient values from the FFQ were compared with those from the R24h by means of the paired t test and Pearson correlation coefficients. The concordance was evaluated using the Bland-Altman method and kappa statistics. Results: The energy and nutrient intake estimated using the FFQ was significantly higher than what was obtained using the R24h. The correlation coefficients adjusted for energy were statistically significant for protein, fat, vitamin C and zinc. The weighted kappa values ranged from 0.06 for vitamin A (p = 0.24) to 0.34 for energy (p < 0.00). The results from the Bland-Altman plots for lipid, protein and zinc showed the most significant validity parameters, and zinc was found to show the best concordance. Conclusion: The results suggest that the FFQ showed satisfactory validity for use in studies involving children and adolescents.

Item Type: Article
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Infectious Disease Epidemiology
Faculty of Epidemiology and Population Health
Research Centre: Centre for Maternal, Reproductive and Child Health (MARCH)
Centre for Global Non-Communicable Diseases (NCDs)
PubMed ID: 23165550
Web of Science ID: 307042300021
URI: http://researchonline.lshtm.ac.uk/id/eprint/512814

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