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Food Frequency consumption and Food‐Related Habits among Brazilian students
Author(s) -
Woolley Natalia
Publication year - 2015
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.29.1_supplement.898.42
Subject(s) - consumption (sociology) , environmental health , food frequency questionnaire , demography , descriptive statistics , food consumption , medicine , population , cluster sampling , geography , mathematics , statistics , social science , sociology , agricultural economics , economics
Objective To study associations between frequency of eating healthy/unhealthy foods, and food‐related habits among Brazilian adolescent students. Methods The Pesquisa Nacional de Saude do Escolar (PENSE), a national survey conducted every three years by the Brazilian Institute of Geography and Statistics (IBGE), assesses health related habits among young adolescents. It was modeled after the Global School‐Based Student Health Survey and the Youth Risk Behavior Surveillance System. The 2012 survey included 109,104 students from 2,842 schools, obtained using multi‐cluster sampling. Food consumption was assessed using questions about consumption of selected foods (e.g. beans, candy) over the previous week, and regular consumption was defined as eating a food item five or more days. Food‐related habits included eating lunch/dinner with parents and having breakfast. The study was conducted using SAS 9.3 and Chi Square statistical tests were used to analyze categorical data. IBGE's descriptive statistics were also used. Characteristics of the student population were summarized by estimating frequency distributions (categorical variables). Around 47.8% of students were male and 52.2% female. Preliminary Results Frequency of eating beans (healthy food) regularly was higher for boys (p‐value <0.001, Cramer's V= 0.11); 74.6% ate beans regularly compared to 65.6% of girls. Girls had higher frequency of eating candy (unhealthy food) (p‐value <0.001, Cramer's V= 0.16); 48% ate candy regularly compared to 34% of boys. Consumption of milk (healthy food) was also higher for those who ate breakfast; 59% of students who ate breakfast regularly also drank milk regularly (p‐value< 0.001, Cramer's V=0.11). Multivariate analysis will be used to evaluate these associations by considering the effects of potential confounders.