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Nutrients ; 8(10)2016 Sep 23.
Artigo em Inglês | MEDLINE | ID: mdl-27669289


The use of dietary patterns to assess dietary intake has become increasingly common in nutritional epidemiology studies due to the complexity and multidimensionality of the diet. Currently, two main approaches have been widely used to assess dietary patterns: data-driven and hypothesis-driven analysis. Since the methods explore different angles of dietary intake, using both approaches simultaneously might yield complementary and useful information; thus, we aimed to use both approaches to gain knowledge of adolescents' dietary patterns. Food intake from a cross-sectional survey with 295 adolescents was assessed by 24 h dietary recall (24HR). In hypothesis-driven analysis, based on the American National Cancer Institute method, the usual intake of Brazilian Healthy Eating Index Revised components were estimated. In the data-driven approach, the usual intake of foods/food groups was estimated by the Multiple Source Method. In the results, hypothesis-driven analysis showed low scores for Whole grains, Total vegetables, Total fruit and Whole fruits), while, in data-driven analysis, fruits and whole grains were not presented in any pattern. High intakes of sodium, fats and sugars were observed in hypothesis-driven analysis with low total scores for Sodium, Saturated fat and SoFAA (calories from solid fat, alcohol and added sugar) components in agreement, while the data-driven approach showed the intake of several foods/food groups rich in these nutrients, such as butter/margarine, cookies, chocolate powder, whole milk, cheese, processed meat/cold cuts and candies. In this study, using both approaches at the same time provided consistent and complementary information with regard to assessing the overall dietary habits that will be important in order to drive public health programs, and improve their efficiency to monitor and evaluate the dietary patterns of populations.

Inquéritos sobre Dietas , Comportamento Alimentar , Modelos Teóricos , Adolescente , Criança , Ciências da Nutrição Infantil , Inquéritos sobre Dietas/métodos , Feminino , Humanos , Masculino , Adulto Jovem
J Pediatr ; 156(3): 456-60, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20004911


OBJECTIVE: To assess dietary quality and associated factors in adolescents. STUDY DESIGN: We conducted a population-based cross-sectional study in a sample of 1584 adolescents living in areas of the state of São Paulo, Brazil. Dietary intake was measured with the 24-hour recall method, and dietary quality was assessed by means of the Health Eating Index (HEI), adapted to fit to the local requirements. Linear regression analyses were performed to assess the association between the HEI and demographic, socioeconomic, and lifestyle variables. RESULTS: A total of 97.1% of the adolescents studied had an inadequate diet or a diet that needed improvement. The mean overall HEI score was 59.7. Lower mean HEI scores were found for fruits, dairy products, and vegetables. Male adolescents who were physically active and lived in a house or apartment had higher HEI scores. The multiple regression analyses showed that the quality of the diet improved as age decreased. Adolescents who lived in houses or apartments had higher HEI scores than adolescents living in shacks or slums, regardless of age and energy intake. CONCLUSIONS: Dietary quality is associated with income and age. A better understanding of the factors associated can provide input to the formulation of policies and development of nutritional actions.

Fenômenos Fisiológicos da Nutrição do Adolescente , Dieta , Comportamentos Relacionados com a Saúde , Adolescente , Brasil/epidemiologia , Criança , Ingestão de Energia , Feminino , Humanos , Estilo de Vida , Masculino , Obesidade/epidemiologia , Sobrepeso/epidemiologia , Características de Residência , Adulto Jovem