Poster Topical Area: Nutritional Epidemiology
Location: Hall D
Poster Board Number: 816
Objective: The study aimed to assess dietary patterns of Brazilian adolescents by a food-based diet quality index, and to evaluate their compliance with international dietary guidelines.
Methods: Participants included 71,553 Brazilian adolescents (12-17 years) from the Study of Cardiovascular Risks in Adolescents (ERICA), a cross-sectional school-based multi-center survey, carried out from February 2013 to November 2014. Sociodemographic characteristics were assessed by self-administered questionnaire. Dietary intake was assessed by 24-hour recall and a second one was collected randomly to correct the within-person variability. The National Cancer Institute method was applied to estimate the usual dietary intake of ten food groups in order to determine the Diet Quality Index for Adolescents adapted for Brazilians (DQIA-BR) and its components: dietary quality, diversity and equilibrium. The DQIA-BR total score range from -33% to 100% and higher score indicates higher diet quality and greater adherence to international dietary guidelines. The DQIA-BR distribution was analyzed according to sex, geographical area and type of school.
Results: The DQIA-BRscores (mean ± SD) were 14.8 ± 6.1% for female and 19.0 ± 6.3% for male. All analyzed strata revealed low scores of DQIA-BR, while its components values were under half of their ideal scores. Medians usual intake were below recommendations for vegetables (~45g), fruits (~30.5g), milk products (~175g) and cheese groups (~6.5g) and also indicated over-consumption of meat group (~185g) and non-recommended food-groups (~85g of snacks and ~600ml of nonnutritive drinks). The highest and the lowest DQIA-BR mean scores were found at the North and the Midwest of Brazilian region, respectively (17.0 ± 6.4% vs. 12.4 ± 6.2%, for females and 20.7 ± 6.3% vs. 16.8 ± 6.3%, for males). The lowest median usual intakes of beans group were observed at private schools (92.7g for females and 146.0 g for males). Both types of school showed relatively similar medians usual intake of food groups.
Conclusions: Our findings suggest that compliance with international dietary guidelines is inadequate and the overall diet quality of Brazilians adolescents needs urgent improvements, in all regions and socioeconomic backgrounds.
Funding Source: Brazilian Funding Authority for Studies and Projects (FINEP) [grant: 01090421]; Brazilian National Council of Technological and Scientific Development (CNPq) [grants: 565037/2010-2, 405009/2012-7 and 457050/2013-6]; Fundo de Incentivo à Pesquisa e Eventos of Hospital de Clínicas de Porto Alegre (FIPE/HCPA) support for publication and, DBR received the Spouse Education Found (SEF) grant from the Community Committee for International Students of Stanford University Bechtel International Center (CA, USA), to conclude a STATA software course.
Universidade de Brasília
Brasília, Distrito Federal, Brazil