[Trajectory of changes in dietary habits of students from a Brazilian public university]. / Trajetória de mudanças das práticas alimentares de estudantes de uma universidade pública brasileira.

The scope of this study was to evaluate possible differences in dietary trajectories of students according to their attendance at a University Restaurant (UR) and the basis for their admission to the university. It was an experiment conducted with undergraduate students (n=1,131) from a Brazilian public university. In 2011 and 2013, questionnaires identified and completed in person were applied assessing the regular consumption of foods that were markers of healthy or unhealthy diet, partaking of lunch, dinner and replacement of lunch and/or dinner with a snack. Changes in regular food practices were examined by the individual trajectory of each student versus the studied practices obtained by combining the responses from the questionnaires. The analysis of the association between UR attendance and trajectory was carried out using multiple logistic regression models. An association was observed (95%CI non-overlapping) with greater UR attendance and a higher chance of a positive trajectory for dinner and lunch, and consumption of beans, vegetables, raw vegetables fruit, cookies, packaged salty snacks, hamburgers and candies, and a lower chance of a negative trajectory for beans, raw vegetables, and fried snacks. The implementation of the UR promoted a significant improvement in the diet of conscientious students.

Avaliar possíveis diferenças nas trajetórias alimentares de estudantes segundo assiduidade ao Restaurante Universitário (RU) e forma de ingresso na universidade. Experimento natural com graduandos (n=1.131) de uma universidade pública brasileira. Em 2011 e 2013 foram aplicados questionários identificados e autopreenchidos presencialmente sobre consumo regular de alimentos marcadores de alimentação saudável ou não saudável, realização do almoço, jantar e substituição de almoço e/ou jantar por lanche. A variação das práticas alimentares regulares foi avaliada pela trajetória individual de cada estudante obtida pela combinação das respostas nos dois questionários. A análise da associação entre a assiduidade ao RU e a trajetória (positiva ou negativa) foi feita por meio de modelos de regressão logística múltipla. Observou-se associação (IC95% não sobrepostos) entre maior assiduidade ao RU e maior chance de trajetória positiva para realização de jantar e de almoço e para consumo de feijão, hortaliças, hortaliças cruas, frutas, biscoito de pacote, hambúrguer/embutidos e guloseimas e menor chance de trajetória negativa para feijão, hortaliças cruas e salgados fritos. A implementação do RU promoveu significativa melhoria da alimentação dos estudantes assíduos a ele, tanto cotistas quanto não cotistas.

Trajetória de mudanças das práticas alimentares de estudantes de uma universidade pública brasileira / Trajectory of changes in dietary habits of students from a Brazilian public university

Resumo Avaliar possíveis diferenças nas trajetórias alimentares de estudantes segundo assiduidade ao Restaurante Universitário (RU) e forma de ingresso na universidade. Experimento natural com graduandos (n=1.131) de uma universidade pública brasileira. Em 2011 e 2013 foram aplicados questionários identificados e autopreenchidos presencialmente sobre consumo regular de alimentos marcadores de alimentação saudável ou não saudável, realização do almoço, jantar e substituição de almoço e/ou jantar por lanche. A variação das práticas alimentares regulares foi avaliada pela trajetória individual de cada estudante obtida pela combinação das respostas nos dois questionários. A análise da associação entre a assiduidade ao RU e a trajetória (positiva ou negativa) foi feita por meio de modelos de regressão logística múltipla. Observou-se associação (IC95% não sobrepostos) entre maior assiduidade ao RU e maior chance de trajetória positiva para realização de jantar e de almoço e para consumo de feijão, hortaliças, hortaliças cruas, frutas, biscoito de pacote, hambúrguer/embutidos e guloseimas e menor chance de trajetória negativa para feijão, hortaliças cruas e salgados fritos. A implementação do RU promoveu significativa melhoria da alimentação dos estudantes assíduos a ele, tanto cotistas quanto não cotistas.

Abstract The scope of this study was to evaluate possible differences in dietary trajectories of students according to their attendance at a University Restaurant (UR) and the basis for their admission to the university. It was an experiment conducted with undergraduate students (n=1,131) from a Brazilian public university. In 2011 and 2013, questionnaires identified and completed in person were applied assessing the regular consumption of foods that were markers of healthy or unhealthy diet, partaking of lunch, dinner and replacement of lunch and/or dinner with a snack. Changes in regular food practices were examined by the individual trajectory of each student versus the studied practices obtained by combining the responses from the questionnaires. The analysis of the association between UR attendance and trajectory was carried out using multiple logistic regression models. An association was observed (95%CI non-overlapping) with greater UR attendance and a higher chance of a positive trajectory for dinner and lunch, and consumption of beans, vegetables, raw vegetables fruit, cookies, packaged salty snacks, hamburgers and candies, and a lower chance of a negative trajectory for beans, raw vegetables, and fried snacks. The implementation of the UR promoted a significant improvement in the diet of conscientious students.

Development and Application of Healthiness Indicators for Commercial Establishments That Sell Foods for Immediate Consumption.

Studies of food environments lack easy-to-apply indicators for their characterization and monitoring. This study aimed to create and assess the applicability of an a priori classification of establishments that sell foods for immediate consumption and to develop and apply indicators for assessment of the establishments' healthiness. The indicators were grouped by the types of foods sold most frequently at these establishments, according to the extent and purpose of the foods' industrial processing. Four indicators were developed, based on the availability of unprocessed/minimally processed foods (MPF) and ultra-processed foods (UPF) in the establishments. The classification and indicators were applied to commercial food establishments at two Brazilian universities. Descriptive analyses were performed to characterize the food environment for all the establishments and by university. Two proportion indicators assess the relative availability of subgroups of MPF and UPF. The UPF/MPF ratio expresses the relative advantage/disadvantage of the availability of MPF compared to that of UPF. The Healthiness Index or summary score expresses the availability of MPF and the unavailability of UPF. The classification and indicators present good discriminatory power and are easy to operationalize, interpret, and adapt.

University food environment: characterization and changes from 2011 to 2016 in a Brazilian public university / Ambiente alimentar universitário: caracterização e mudanças no período de 2011 a 2016 em uma universidade pública brasileira

ABSTRACT Objective To describe the food environment of a public university located in the city of Rio de Janeiro, Brazil, and to review the changes that occurred between the years 2011 and 2016. Methods Time trend study (through repeated cross-sectional studies) of the sale of food, culinary preparations and beverages in the University Campus establishments in 2011, 2012 and 2016. Variables regarding the description of the establishments and the offer, price and advertising of food, beverages and culinary preparations were assessed through a checklist. Comparisons between establishments in each year and the analysis of such comparison changes during the period were performed by assessing the difference between absolute and relative values observed in each year. Results Increased number of establishments available, good convenience and financial accessibility were observed. There was a relative disadvantage in the availability of fresh or minimally processed foods and culinary preparations; a predominance of advertising of ultra-processed foods; and lack of nutritional information of culinary preparations. The predominance of establishments selling snacks and candies increased over the years. Conclusion In the period studied, the university food environment did not favor healthy food choices.

RESUMO Objetivo Descrever o ambiente alimentar de uma universidade pública localizada na cidade do Rio de Janeiro e analisar as mudanças nele ocorridas no período de 2011 a 2016. Métodos Estudo de tendência temporal (por meio de estudos transversais repetidos) da comercialização de alimentos, preparações e bebidas nos estabelecimentos existentes dentro do campus em 2011, 2012 e 2016. Foram examinadas, por meio de checklist, variáveis referentes à descrição dos estabelecimentos e a oferta, preço e propaganda de alimentos, bebidas e preparações. A comparação entre os estabelecimentos e a análise das variações verificadas no período foi realizada com base no exame das diferenças entre valores absolutos e relativos observadas em cada ano. Resultados Foram observados aumento da disponibilidade de estabelecimentos, boa comodidade e acessibilidade financeira. Verificou-se desvantagem relativa da disponibilidade de alimentos in natura ou minimamente processados e de preparações, predominância de propaganda de alimentos ultraprocessados e ausência de informações nutricionais das preparações. A predominância de estabelecimentos que comercializavam lanches e guloseimas se acentuou no período. Conclusão No período estudado, o ambiente alimentar universitário não favoreceu escolhas alimentares saudáveis.

Effect of implementation of a University Restaurant on the diet of students in a Brazilian public university.

Dietary practices of college students were compared before and after implementation of the University Restaurant (UR) and examined according to frequency of UR use. A natural experiment was conducted with students (n = 1131) of a Brazilian public university using a validated self-completed and identified questionnaire that inquired information on practices of substituting lunch and/or dinner with a snack (≥ 5 days/week) and on regular consumption of foods that were markers of a healthy or unhealthy diet. At the second time point, UR use by students was also assessed based on their attendance to it. Changes in food practices were examined by determining differences in proportions between the two assessments. The analysis of the association between UR use and each dietary practice was carried out using multiple logistic regression models. An association was observed between greater UR use and higher frequency of regular consumption of beans, vegetables, raw vegetables, cooked vegetables and fruit and lower frequency of regular consumption of French fries and/or fried snacks. The UR proved to be an environment that facilitated the adoption of healthy dietary practices and promoted improvement in the diets of the students who were more assiduous to the restaurant.

Effect of implementation of a University Restaurant on the diet of students in a Brazilian public university / Efeito da implementação do Restaurante Universitário na alimentação de estudantes de uma universidade pública brasileira

Abstract Dietary practices of college students were compared before and after implementation of the University Restaurant (UR) and examined according to frequency of UR use. A natural experiment was conducted with students (n = 1131) of a Brazilian public university using a validated self-completed and identified questionnaire that inquired information on practices of substituting lunch and/or dinner with a snack (≥ 5 days/week) and on regular consumption of foods that were markers of a healthy or unhealthy diet. At the second time point, UR use by students was also assessed based on their attendance to it. Changes in food practices were examined by determining differences in proportions between the two assessments. The analysis of the association between UR use and each dietary practice was carried out using multiple logistic regression models. An association was observed between greater UR use and higher frequency of regular consumption of beans, vegetables, raw vegetables, cooked vegetables and fruit and lower frequency of regular consumption of French fries and/or fried snacks. The UR proved to be an environment that facilitated the adoption of healthy dietary practices and promoted improvement in the diets of the students who were more assiduous to the restaurant.

Resumo Práticas alimentares de universitários foram comparadas antes e após implementação do Restaurante Universitário (RU) e examinadas segundo a assiduidade ao RU. Experimento natural foi conduzido com estudantes (n = 1.131) de uma universidade pública utilizando questionário validado autopreenchido e identificado que abarcou as práticas de substituir o almoço e/ou jantar por lanche (≥ 5 dias/semana) e o consumo regular de alimentos marcadores de alimentação saudável e não saudável. No segundo momento, foi examinada a adesão dos estudantes ao RU por meio de sua assiduidade a ele. A variação das práticas alimentares foi examinada pela diferença entre proporções obtidas nos dois momentos de avaliação. A análise da associação entre a assiduidade ao RU e cada uma das práticas alimentares regulares foi feita por meio de modelos de regressão logística múltipla. Observou-se associação entre maior assiduidade ao RU e maior frequência de consumo regular de feijão, hortaliças, hortaliças cruas, hortaliças cozidas e frutas e menor frequência de consumo regular de batata frita e/ou salgados fritos. A implementação do RU se constituiu como um espaço facilitador da adoção de práticas alimentares saudáveis e promoveu a melhoria da alimentação dos estudantes com maior assiduidade a ele.

Dietary practices of quota and non-quota students at a Brazilian public university.

Dietary practices of college students were described and examined according to the means by which they were admitted to the university (quota and non-quota students). A cross-sectional study was conducted with undergraduates (n = 1336) at a public university using a self-administered and identified questionnaire that inquired about their habits of eating breakfast and substituting lunch and/or dinner with snacks as well as the regular consumption (≥ 5 times a week) of markers for healthy and unhealthy eating. Analysis of the association between means of admission to the university and dietary practices was done using univariate and multivariate logistic regression models. It was observed that significant proportions of the students did not eat breakfast; substituted dinner with snacks; had low fruit, vegetable and bean consumption; and frequently consumed sugary beverages, sweets, cookies and packaged salty snacks. The quota students were found to more frequently consume beans, cookies and packaged salty snacks and less frequently substitute dinner with snacks and consume vegetables and fruits. Quota and non-quota students had some similarities in their dietary practices that were unhealthy. The differences observed between the two groups were largely more unfavorable for the quota students, with the exception of bean consumption.

Práticas alimentares de estudantes cotistas e não cotistas de uma universidade pública brasileira / Dietary practices of quota and non-quota students at a Brazilian public university

Resumo As práticas alimentares de universitários foram descritas e examinadas segundo forma de ingresso na universidade (cotistas e não cotistas). Foi realizado um estudo seccional com 1336 graduandos de uma universidade pública utilizando questionário autopreenchido e identificado abarcando os hábitos de realizar desjejum e de substituir o almoço e/ou o jantar por lanche e o consumo regular de alimentos marcadores de alimentação saudável e não saudável. A análise da associação entre forma de ingresso e práticas alimentares foi feita por meio de modelos de regressão logística uni e multivariada. Foram observadas proporções expressivas de: não realização do desjejum, substituição do jantar por lanche, baixo consumo de frutas, hortaliças e feijão e consumo frequente de bebidas açucaradas, guloseimas e biscoitos e/ou salgadinhos “de pacote”. Entre cotistas, foi mais frequente o consumo de feijão, de biscoitos e/ou salgadinhos “de pacote” e de biscoitos doces e menos frequentes a substituição de jantar por lanche e o consumo de hortaliças e de frutas. Cotistas e não cotistas apresentaram práticas alimentares com algumas semelhanças e desfavoráveis para a saúde. As diferenças observadas entre os dois grupos foram, em sua maioria, na direção de um quadro mais desfavorável para os cotistas, exceto para feijão.

Abstract Abstract Dietary practices of college students were described and examined according to the means by which they were admitted to the university (quota and non-quota students). A cross-sectional study was conducted with undergraduates (n = 1336) at a public university using a self-administered and identified questionnaire that inquired about their habits of eating breakfast and substituting lunch and/or dinner with snacks as well as the regular consumption (≥ 5 times a week) of markers for healthy and unhealthy eating. Analysis of the association between means of admission to the university and dietary practices was done using univariate and multivariate logistic regression models. It was observed that significant proportions of the students did not eat breakfast; substituted dinner with snacks; had low fruit, vegetable and bean consumption; and frequently consumed sugary beverages, sweets, cookies and packaged salty snacks. The quota students were found to more frequently consume beans, cookies and packaged salty snacks and less frequently substitute dinner with snacks and consume vegetables and fruits. Quota and non-quota students had some similarities in their dietary practices that were unhealthy. The differences observed between the two groups were largely more unfavorable for the quota students, with the exception of bean consumption.