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|Title: ||Validation of a food frequency questionnaire for children and adolescents|
|Other Titles: ||Nutr Hosp|
|Authors: ||Matos, Sheila Maria Alvim de|
Prado, Matildes da Silva
Assis, Ana Marlucia de Oliveira
Dourado, L. S.
Oliveira, N. S.
Rodrigues, Laura C.
Barreto, Mauricio Lima
|Keywords: ||Validity;Food Frequency Questionnaire;Children|
|Issue Date: ||2012|
|Publisher: ||Grupo Aula Médica|
|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.|
|Appears in Collections:||Artigos Publicados em Periódicos Estrangeiros (ISC)|
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