71 research outputs found
Validation of a food frequency questionnaire for children and adolescents aged 4 to 11 years living in Salvador, Bahia.
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
Fatores associados à interrupção precoce do aleitamento materno: um estudo de coorte de nascimento em dois municÃpios do Recôncavo da Bahia, Brasil
Intestinal helminth infections and dietary diversity score predict nutritional status of urban schoolchildren from southern Ethiopia
Concentração de hemoglobina e anemia em crianças no Estado de Pernambuco, Brasil: fatores sócio-econômicos e de consumo alimentar associados
Segurança alimentar e nutricional: desenvolvimento de indicadores e experimentação em um municÃpio da Bahia, Brasil
Utilização e cobertura do Sistema de Vigilância Alimentar e Nutricional no Estado do Rio Grande do Sul, Brasil
Meanings attributed to breastfeeding in the first two years of life: a study with women from two municipalities in the Recôncavo Baiano region of Bahia, Brazil
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