Relative validity of a food-frequency questionnaire developed to assess food intake of schoolchildren living in the Brazilian Western Amazon

Scagliusi, Fernanda Baeza; Garcia, Mariana Tarricone; Indiani, Ana Luiza Coutinho; Cardoso, Marly Augusto

doi:10.1590/s0102-311x2011001100013

Cited by 23 publications

(33 citation statements)

References 30 publications

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“…The validity coefficient for energy intake between the FFQs and the average of three 24hDR in our study was 0.29 higher than in a study with 68 pre-school children in USA (r = 0.08) that also used 24hDR as the reference method [11]; correlations for other nutrients in that study ranged from 0.27 for alpha-tocopherol to 0.42 for vitamin C, similar to those found in our study for energy-adjusted nutrients. In another study among children aged 9 to 18 in USA (n = 261), validity was evaluated against three 24hDR during a one year period [44]; the reported average of correlation coefficient after correction for within-person error was higher than in our study (0.51 vs 0.44) and the observed in another study among schoolchildren aged 6–9 years from Brazilian Western Amazon (0.46) [45], which could be due in part to the higher capacity of older children to remember their diets.…”

Section: Discussioncontrasting

confidence: 49%

Reproducibility and Validity of a Food Frequency Questionnaire Designed to Assess Diet in Children Aged 4-5 Years

et al. 2016

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BackgroundThe food frequency questionnaire (FFQ) is the most efficient and cost-effective method to investigate the relationship between usual diet and disease in epidemiologic studies. Although FFQs have been validated in many adult populations worldwide, the number of valid FFQ in preschool children is very scarce. The aim of this study was to evaluate the reproducibility and validity of a semi-quantitative FFQ designed for children aged 4 to 5 years.Materials and methodsIn this study, we have included 169 children aged 4–5 years from the INMA project in Valencia, a population-based prospective cohort study of mothers and children in Spain. The 105-items FFQ was administered twice to the parents or care-givers of children over a 9-month period. Reproducibility was explored by comparing intake of nutrients by the FFQs, while validity was examined by comparing the nutrient values from the FFQs with the average nutrient values of three 24 hour dietary recall (24hDR) taken in the period, and also, with the concentration in blood specimens for several vitamins (carotenoids, folate, vitamin B12, vitamin C and α-tocopherol). Pearson correlation coefficients and de-attenuated correlation coefficients were calculated and we also evaluated misclassification by quintile distribution.ResultsAll correlation coefficients for reproducibility for nutrients and major food groups were statistically significant; the average correlation coefficients for daily intake were 0.43 for food groups and 0.41 for nutrients. The average correlation coefficients for validity for daily intakes against 24hDR was r = 0.30, and the average for de-attenuated correlation coefficients was r = 0.44. When evaluating validity against the blood concentration of vitamins, statistically significant correlations were observed for vitamin C (0.35), lycopene (0.31), β-Cryptoxantin (0.40), and vitamin E (0.29); the average of correlation coefficients was r = 0.21.ConclusionDespite some low to moderate correlations for reproducibility and validity, overall this study suggests that the FFQ may be a good method for assessing a wide range of food groups and nutrients intake in children aged 4–5 years.

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Section: Discussioncontrasting

confidence: 49%

Reproducibility and Validity of a Food Frequency Questionnaire Designed to Assess Diet in Children Aged 4-5 Years

et al. 2016

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“…The presence of 12 household assets was assessed to generate a wealth index through principal component analysis, and maternal characteristics (educational level and age) were also recorded. For children aged >4 years, data from a validated food frequency questionnaire were used to produce a food frequency index for fruit and vegetable consumption ranging from 0 (lowest category, including children who did not consume vegetables, but consumed fruit ≤3 times/week) to 4 (highest category, including children who consumed vegetables and fruits ≥1 time/day) [20], [21]. A sample (5 mL) of fasting venous blood was collected from children; serum and plasma samples were shipped to São Paulo on dry ice and frozen at −70°C until further analysis.…”

Section: Methodsmentioning

confidence: 99%

C-Reactive Protein Concentration Predicts Change in Body Mass Index during Childhood

Lourenço

Cardoso

2014

PLoS ONE

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ObjectiveInflammation may constitute an underlying mechanism for increased risk of developing chronic diseases in later years, but few prospective studies have assessed the influence of low-grade inflammation on body weight gain, particularly among children in low- to middle-income settings with lower prevalence of overweight and obesity. We aimed to investigate whether C-reactive protein (CRP), as a biomarker of low-grade inflammation, predicts changes in body mass index-for-age z scores (BAZ) during childhood.MethodsA population-based longitudinal study was conducted in the Brazilian Amazon among children aged ≤10 years in 2007, with follow-up visits in 2009 and 2012. Outcome was annual change in BAZ. As the main exposure of interest, CRP concentrations were divided into four categories, with values <1 mg/L divided in tertiles plus a fourth category with values ranging from 1 to 10 mg/L. Children were simultaneously screened for iron and vitamin A deficiencies, diarrhea, and wheezing. We used mixed-effect linear regression models to measure the effect of CRP concentrations on annual BAZ change and linear regression models to explore CRP predictors at baseline.ResultsAt baseline, 1007 children had CRP and anthropometric data [mean (SD) age: 5.3 (2.9) years; 50.9% male, 84.5% mulatto/mixed-race, 14.0% at risk for overweight or obesity, 4.8% stunted]; 737 were successfully followed up. Morbidities and nutritional deficiencies were widespread. Among participants aged >5 years, children in the highest tertile of CRP <1 mg/L at baseline, regarded as an indicator of low-grade inflammation, had a 0.04 z/y higher gain in BAZ (95% CI: 0.01, 0.09 z/y) during follow-up. CRP was positively associated with household poverty and worse nutritional indicators.ConclusionsWe found evidence of a role for low-grade inflammation in predicting annual BAZ gain among children aged >5 years.

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“…Como a variação intraindividual no consumo de crianças é alta, isso requer mais dias de relatos de consumo para avaliar acuradamente o consumo alimentar, o que não seria viável em muitos estudos (FALCÃO-GOMES et al, 2006). Portanto, o QFA seria uma alternativa que facilitaria a avaliação do consumo habitual sem impor grande cooperação dos participantes (SCAGLIUSI et al, 2011). WILLETT et al (1985) e BLOCK et al (1986 propõem, em estudos prospectivos, a utilização do QFA como método para aferição do consumo alimentar habitual.…”

Section: Segundo O Comitê De Expertos Da Organização Das Nações Unidasunclassified

“…Outro estudo avaliou a validade da utilização de um QFA desenvolvido para adultos, em crianças de 5 a 10 anos (FUMAGALLI et al, 2008) , 1998). WILLETT (1998) Há poucos QFA construídos com apreciação de suas propriedades psicométricas em crianças de 7 a 10 anos (HAMMOND et al, 1993;ROCKETT et al, 1995;ARNOLD et al, 1995;BERTOLI et al, 2005;ROUMELIOTI e LEOTSINIDIS, 2009;PINO, 2009;ZEMEL et al, 2010;SHATENSTEIN et al, 2010;KOBAYASHI et al, 2011;PRESTON et al, 2011;SCAGLIUSI et al, 2011;MATOS et al, 2012…”

Section: Segundo O Comitê De Expertos Da Organização Das Nações Unidasunclassified

“…No estudo de validade do QUEFAC, a variação do coeficiente de correlação intraclasse calculado (r icc =0,00 a 0,37) foi menor que os reportados na literatura (ARNOLD et al, 1995;MARSHALL et al, 2008;WATSON et al, 2009;SCAGLIUSI et al, 2011 As baixas correlações encontradas refletem uma baixa relação de aproximação linear entre os métodos pela grande variação da diferença intrapessoal (NELSON, 1997;FISBERG et al, 2005). Segundo NELSON 1997 (NELSON, 1997).…”

Section: Estudo De Validadeunclassified

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Questionário de Frequência Alimentar Quantitativo para crianças de 7 a 10 anos: avaliação das propriedades psicométricas

Hinnig¹

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HINNIG PF. Quantitative Food Frequency Questionnaire: evaluation of psychometric properties [thesis]. São Paulo: Faculdade de Saúde Pública da USP; 2014. Introduction: A Quantitative Food Frequency Questionnaire (QUEFAC) was developed by Hinnig et al. (2010) to assess the usual intake of children aged 7 to 10 years, because instruments developed for adults may overestimate food consumption of children. However, it was not tested for validity and reliability, so that the instrument can be used in research. Objective: to assess the reproducibility and validity of QUEFAC for the sample as a whole and to evaluate the validity stratified by sex, age group and socioeconomic status. Methods: The reproducibility study was conducted in the city of Araraquara, São Paulo, Brazil, in April 2013, with 89 children aged 7 to 10 years who answered two QUEFAC's with an interval of 15 days between applications. The validity study was conducted with 167 children from two schools in the city of São Paulo, Brazil, from August to December 2013. In this, children responded to three 24-hour dietary recalls (24HR) which was the reference method and to a QUEFAC. In both studies, the caregivers of the children answered a socioeconomic questionnaire and the child's ability to respond to QUEFAC was assessed. The mean difference for paired samples (Wilcoxon and paired t test), the intraclass correlation coefficient, the weighted kappa and the analysis of Bland-Altman were used to assess the reproducibility and the validity. Results: Fifty five percent of children had their ability to answer the questionnaire considered good, very good or excellent in all the aspects. In the reproducibility study, we observed a significant difference between the means for all nutrients of the two QUEFAC, the intraclass correlation coefficient ranged from 0.12 to 0.54, the weighted kappa values ranged from 0.01 to 0.39. The Bland-Altman plots showed random distribution for all nutrients. In the validity study of the entire sample, we observed difference in means for all nutrients, except for energy and zinc, the intraclass correlation coefficient ranged from 0 to 0.37, the weighted kappa values ranged from 0 to 0.27. The Bland-Altman plot showed a random distribution of data for lipids, carbohydrates, calcium, phosphorus, sodium, zinc, vitamin B1, vitamin B2, niacin, vitamin C, retinol and saturated fat. The assessment of the validity stratified by sex, age and socioeconomic status showed similar results. Conclusion: the QUEFAC was not valid for the evaluation of habitual intake of the last three months for children aged 7 to 10 years living in the city of Sao Paulo and had moderate reproducibility for energy, protein, calcium, phosphorus, iron , potassium, magnesium and vitamin B2.

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Relative validity of a food-frequency questionnaire developed to assess food intake of schoolchildren living in the Brazilian Western Amazon

Cited by 23 publications

References 30 publications

Reproducibility and Validity of a Food Frequency Questionnaire Designed to Assess Diet in Children Aged 4-5 Years

Reproducibility and Validity of a Food Frequency Questionnaire Designed to Assess Diet in Children Aged 4-5 Years

C-Reactive Protein Concentration Predicts Change in Body Mass Index during Childhood

Questionário de Frequência Alimentar Quantitativo para crianças de 7 a 10 anos: avaliação das propriedades psicométricas

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