Dietary Environmental Footprints and Their Association with Socioeconomic Factors and Food Purchase Practices: BRAZUCA Natal Study.

The analysis of dietary environmental impacts has proven to be an important tool for guiding the adoption of healthier and more sustainable diets. This study aimed to estimate the dietary carbon (CF), water (WF), and ecological (EF) footprints of residents in the city of Natal, Brazil; the study also aimed to verify their association with socioeconomic factors and food purchase practices. This is a cross-sectional study that used dietary data from 411 adults and elderlies, which was collected via a questionnaire that applied to the respondents. The results showed that the dietary CF was 1901.88 g CO2 eq/day/1000 kcal, the WF was 1834.03 L/day/1000 kcal, and the EF was 14.29 m2/day/1000 kcal. The highest environmental footprint values showed an association (p ≤ 0.05) with the factors of male sex, white ethnicity, and higher income and schooling, whereas the lowest environmental footprint values were associated with social vulnerability variables such as female sex, non-white ethnicity, and lower income and schooling (p ≤ 0.05). Moreover, people with lower environmental footprints consumed less fast food, had fewer meals at snack bars, and used food delivery services less often than those with higher footprints. The foods that most contributed to the CFs and WFs were beef and chicken, while fish and beef contribute the most to the EFs. The data in the present study show that a diet with a lower environmental impact is not always equal to a sustainable diet. This relationship is paradoxical and relates to food justice, as people with lower environmental footprint values are the same ones with worse socioeconomic conditions. In this sense, is it essential to consider the influence of the social context when assessing dietary environmental impacts and when assessing actions that promote healthier and more sustainable diets.

Environmental footprints of food consumption: Protocol for a systematic literature review.

Environmental footprints are indicators that can be used to estimate the impacts of diet on the environment. Since contemporary dietary practices are related to negative environmental impacts, this paper aims to describe a systematic review protocol to investigate the environmental footprints of food consumption by adults and elderly individuals worldwide. This protocol was developed based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Search strategies and records of evidence searched in previously defined electronic databases will be defined. Original, population-based articles investigating the environmental footprints of food consumption by adults and the elderly will be included. Two independent reviewers will conduct the study selection and data extraction steps. Critical appraisal of the included studies will be based on the Newcastle-Ottawa Scale. For data synthesis, a narrative synthesis and, if possible, also a meta-analysis will be performed. The systematic review produced from this protocol will provide evidence for data synthesis of the environmental impact through environmental footprints of food consumption of the adult and elderly population from different territories and the footprint assessment tools used around the world. Therefore, it is a gap that needs to be filled because knowing these impacts will be important to inform the development of public policies that encourage healthy and sustainable food in the face of climate and epidemiological changes. PROSPERO registration number: CRD42021281488.

Dietary and Nutritional Profiles among Brazilian Adolescents.

(1) Background: The present study analyzed the prevalence of dietary and nutritional profiles among Brazilian adolescents and their associations with social determinants of health. (2) Methods: A population-based survey was administered to 16,409 adolescents assessed by the 2015 National School Health Survey. A multivariate model of dietary and nutritional profiles was estimated from correspondence analysis. (3) Results: The dietary and nutritional profiles more prevalent among Brazilian adolescents were "lower nutritional risk dietary pattern and eutrophic" (42.6%), "lower nutritional risk dietary pattern and overweight" (6.8%), and "higher nutritional risk dietary pattern and overweight" (6.0%). Healthier profiles were associated with less urbanized territories, health-promoting behaviors, and families with worse material circumstances. The less healthy profiles were associated with more urbanized environments, health risk behaviors, and families with better material circumstances. (4) Brazilian adolescents have different dietary and nutritional profiles that are characterized by sociopolitical and economic contexts, family material and school circumstances, and the behavioral and psychosocial health factors of the individuals. All of this points to the social determination of these health problems among adolescents in Brazil.

Social determinants of health associated with the experience of hunger among Brazilian adolescents. / Determinantes sociais em saúde associados à vivência da fome entre adolescentes do Brasil.

The aim of this study was to identify social determinants of health associated with the experience of hunger among school-age adolescents in Brazil. We conducted a cross-sectional study with a sample of 16,526 adolescents using data from the 2015 National School-based Student Health Survey. Experience of hunger was determined based on the answer to the question "In the last 30 days, how often have you been hungry because there wasn't enough food at home?" The social determinants of health were analyzed using Poisson regression with robust variance. The prevalence of the experience of hunger was 22.8% (95%CI: 21.9-23.7). The experience of hunger was directly associated with being male (PR = 1.12; 95%CI: 1.07-1.16); not being overweight (PR = 1.08; 95%CI: 1.04-1.13 ); irregular consumption of beans (PR = 1.20; 95%CI: 1.13-1.26), vegetables (PR=1.16; 95%CI: 1.09-1.22) and fruit (PR = 1.19; 95%CI: 1.13-1.24); body dissatisfaction (PR = 1.26; 95%CI: 1.18-1.35); and not regularly eating lunch or dinner with parents or guardians (PR = 1.41; 95%CI: 1.32-1.52). An inverse association was found between the experience of hunger and maternal education level and living in the Mid-West, Southeast and South. The findings show that the experience of hunger among Brazilian adolescents coexists with risky eating behaviors, body dissatisfaction, and social inequality.

Objetivou-se identificar determinantes sociais em saúde associados à vivência da fome entre adolescentes escolares brasileiros. Foi realizado um estudo transversal com microdados de 16.526 adolescentes da Pesquisa Nacional de Saúde do Escolar 2015. A vivência da fome foi estimada considerando a frequência com que o adolescente havia ficado com fome por não ter comida suficiente em casa no mês anterior à pesquisa. Para a análise dos determinantes sociais em saúde foi realizada Regressão de Poisson com variância robusta. Verificou-se, no Brasil, que a vivência da fome foi de 22,8% (IC95%: 21,9-23,7) entre adolescentes. Essa associou-se diretamente ao sexo masculino (RP=1,12; IC95%: 1,07-1,16), a não ter excesso de peso (RP=1,08; IC95%: 1,04-1,13), ao consumo irregular de feijão (RP=1,20; IC95%: 1,13-1,26), de legumes e verduras (RP=1,16; IC95%: 1,09-1,22) e de frutas (RP=1,19; IC95%: 1,13-1,24), à insatisfação corporal (RP=1,26; IC95%: 1,18-1,35) e ao consumo irregular de almoço ou jantar com os responsáveis (RP=1,41; IC95%: 1,32-1,52); e inversamente ao gradiente de escolaridade materna, e às macrorregiões do complexo Centro-Sul. Os resultados indicam a coexistência da fome, comportamentos alimentares de risco nutricional, insatisfação corporal e condições de iniquidade social entre adolescentes brasileiros.

Social Determinants of Obesity and Stunting among Brazilian Adolescents: A Multilevel Analysis.

(1) Background: The purpose of this study was to identify the prevalence of obesity and stunting among Brazilian adolescents and its associations with social determinants of health (individual, family, and school), grounded on the necessity of investigating the determinants of nutritional problems within this population. (2) Methods: A population-based survey was administered to 16,556 adolescents assessed by the 2015 National School Health Survey. Multivariate models of obesity and stunting were estimated from Multilevel Poisson Regressions. (3) Results: The prevalence of obesity among Brazilian adolescents (10.0%; 95% CI: 9.4-10.6) was associated directly with indifference or dissatisfaction with body image, with eating breakfast four or fewer days a week, living with up to four people in the household, studying in private schools, and being from the South region, and was inversely associated with being female, 15 years old or older, with having the highest nutritional risk eating pattern, dining at fast-food restaurants, and eating while watching television or studying. The prevalence of stunting (2.3%; 95% CI: 2.0-2.8) was directly associated with the age of 15 years or older, and inversely associated with the lower number of residents living in the household, maternal education-decreasing gradient from literate to college level education, studying in urban schools, and being from the South and Central-West regions. (4) Conclusions: Obesity in adolescence presented behavioral determinants. Stunting and obesity have structural social determinants related, respectively, to worse and better socioeconomic position among Brazilian adolescents.

Determinantes sociais em saúde associados à vivência da fome entre adolescentes do Brasil / Social determinants of health associated with the experience of hunger among Brazilian adolescents

Resumo Objetivou-se identificar determinantes sociais em saúde associados à vivência da fome entre adolescentes escolares brasileiros. Foi realizado um estudo transversal com microdados de 16.526 adolescentes da Pesquisa Nacional de Saúde do Escolar 2015. A vivência da fome foi estimada considerando a frequência com que o adolescente havia ficado com fome por não ter comida suficiente em casa no mês anterior à pesquisa. Para a análise dos determinantes sociais em saúde foi realizada Regressão de Poisson com variância robusta. Verificou-se, no Brasil, que a vivência da fome foi de 22,8% (IC95%: 21,9-23,7) entre adolescentes. Essa associou-se diretamente ao sexo masculino (RP=1,12; IC95%: 1,07-1,16), a não ter excesso de peso (RP=1,08; IC95%: 1,04-1,13), ao consumo irregular de feijão (RP=1,20; IC95%: 1,13-1,26), de legumes e verduras (RP=1,16; IC95%: 1,09-1,22) e de frutas (RP=1,19; IC95%: 1,13-1,24), à insatisfação corporal (RP=1,26; IC95%: 1,18-1,35) e ao consumo irregular de almoço ou jantar com os responsáveis (RP=1,41; IC95%: 1,32-1,52); e inversamente ao gradiente de escolaridade materna, e às macrorregiões do complexo Centro-Sul. Os resultados indicam a coexistência da fome, comportamentos alimentares de risco nutricional, insatisfação corporal e condições de iniquidade social entre adolescentes brasileiros.

Abstract The aim of this study was to identify social determinants of health associated with the experience of hunger among school-age adolescents in Brazil. We conducted a cross-sectional study with a sample of 16,526 adolescents using data from the 2015 National School-based Student Health Survey. Experience of hunger was determined based on the answer to the question "In the last 30 days, how often have you been hungry because there wasn't enough food at home?" The social determinants of health were analyzed using Poisson regression with robust variance. The prevalence of the experience of hunger was 22.8% (95%CI: 21.9-23.7). The experience of hunger was directly associated with being male (PR = 1.12; 95%CI: 1.07-1.16); not being overweight (PR = 1.08; 95%CI: 1.04-1.13 ); irregular consumption of beans (PR = 1.20; 95%CI: 1.13-1.26), vegetables (PR=1.16; 95%CI: 1.09-1.22) and fruit (PR = 1.19; 95%CI: 1.13-1.24); body dissatisfaction (PR = 1.26; 95%CI: 1.18-1.35); and not regularly eating lunch or dinner with parents or guardians (PR = 1.41; 95%CI: 1.32-1.52). An inverse association was found between the experience of hunger and maternal education level and living in the Mid-West, Southeast and South. The findings show that the experience of hunger among Brazilian adolescents coexists with risky eating behaviors, body dissatisfaction, and social inequality.

FOOD AND NUTRITIONAL PROFILES OF BRAZILIAN ADOLESCENTS / PERFIS ALIMENTARES E NUTRICIONAIS DE ADOLESCENTES BRASILEIROS

The objective of this study was to analyze the prevalence of dietary and nutritional profiles of Brazilian adolescents and their associations with sociodemographic, behavioral and sustainability factors. Data from 16,556 adolescents evaluated by the 2015 National Adolescent Health Survey were used. The information was generated from Descriptive and Correspondence Analysis of the main variables - food and nutritional profiles (combination of dietary pattern categories with nutritional status categories) - and secondary. The most prevalent profile was identified as the type of dietary pattern (BP) with the lowest nutritional risk (NB) with normal weight, grouping 42.6% (95%CI: 41.3-43.7) of the adolescents, followed by the PA profiles of higher NB with normal weight (28.1%; 95%CI: 27.1-29.0), BP of lower NB with excess weight (17.5%; 95%CI: 16.7-18.3), BP of higher NB with excess weight (9.2%; 95%CI: 8.6-9.8), BP of lower NB with thinness (1.5%; 95%CI: 1.3-1.8) and BP of greater NB with thinness (1.1%; 95%CI: 0.9-1.4). These food and nutritional profiles coexist with different ways of life among Brazilian adolescents marked by sociodemographic, behavioral and sustainability aspects. The identification of these profiles and how they are distributed in the population allows for a better diagnosis of the realities of adolescents and the planning of more targeted and resolute feeding actions.

O objetivo desse trabalho foi analisar as prevalências dos perfis alimentares e nutricionais de adolescentes brasileiros e suas associações com fatores sociodemográficos, comportamentais e de sustentabilidade. Foram utilizados dados de 16.556 adolescentes avaliados pela Pesquisa Nacional de Saúde do Escolar 2015. As informações foram geradas a partir de Análise descritiva e de Correspondência das variáveis principais ­ perfis alimentares e nutricionais (combinação de categorias do padrão alimentar com categorias do estado nutricional) - e secundárias. Identificou-se como perfil mais prevalente o tipo padrão alimentar (PA) de menor risco nutricional (RN) com eutrofia agrupando 42,6% (IC95%: 41,3-43,7) dos adolescentes, esse foi seguido pelos perfis PA de maior RN com eutrofia (28,1%; IC95%: 27,1-29,0), PA de menor RN com excesso de peso (17,5%; IC95%:16,7-18,3), PA de maior RN com excesso de peso (9,2%; IC95%:8,6-9,8), PA de menor RN com magreza (1,5%; IC95%:1,3-1,8) e PA de maior RN com magreza (1,1%; IC95%: 0,9-1,4). Esses perfis alimentares e nutricionais coexistem com formas de vida diferentes entre os adolescentes brasileiros marcadas por aspectos sociodemográficos, comportamentais e de sustentabilidade. A identificação desses perfis e como se distribuem na população permite um melhor diagnósticos das realidades dos adolescentes e ao planejamento de ações de alimentação mais direcionadas e resolutivas.

[Acceptance of school food by Brazilian adolescents: individual and school context determinants]. / Adesão à alimentação escolar por adolescentes brasileiros: determinantes individuais e do contexto escolar.

The scope of this study was to evaluate the acceptance of school food by Brazilian adolescents, taking individual and school context determinants into consideration. A total of 10,262 adolescents in public schools of the 2015 Brazilian National Survey of School Health (PeNSE 2015) were assessed. Multilevel regression was used to estimate the effect of variables of the individual context and the school environment on low acceptance of school food by adolescents. The prevalence of low acceptance (consumption of school meals ≤ 2 days/week) was 64.2% in this group. The explanatory model showed less acceptance of this practice among female adolescents (PR=1.09; CI: 1.03-1.14), among those aged 15 years or older (PR=1.08; CI: 1.02-1.14), those who regularly consumed soft drinks (PR=1.09; CI: 1.03-1.15), those who did not regularly have lunch and dinner with parents and guardians (PR=1.08; CI: 1.02-1.14), and those who lived in households with less than 4 people (PR=1.07; CI: 1.02-1.13). Concerning the school environment, studying in schools with more than 1,000 students (PR=1.22; CI: 1.12-1.33) and the presence of a cafeteria (PR=1.15; CI: 1.08-1.22) led to low acceptance. The results revealed the importance of the school context in determining the consumption of school meals by adolescents.

Objetivou-se avaliar a adesão à alimentação escolar por adolescentes brasileiros considerando determinantes individuais e do contexto escolar. Foram avaliados 10.262 adolescentes de escolas públicas da Pesquisa Nacional de Saúde do Escolar de 2015. Regressão multinível foi utilizada para estimar o efeito de variáveis do contexto individual e do ambiente escolar na ocorrência da baixa adesão à alimentação escolar por adolescentes. A prevalência dessa baixa adesão (consumo da alimentação escolar ≤2dias/semana) foi 64,2% nesse grupo. O modelo explicativo evidenciou menor adesão a essa prática entre adolescentes do sexo feminino (RP=1,09; IC: 1,03-1,14), entre aqueles com 15 anos ou mais de idade (RP=1,08; IC: 1,02-1,14), que tinham consumo regular de refrigerantes (RP=1,09; IC: 1,03-1,15), que não realizavam regularmente almoço e jantar com pais e responsáveis (RP=1,08; IC: 1,02-1,14), e que moravam em domicílios com menos de 4 pessoas (RP=1,07; IC: 1,02-1,13). Em relação ao ambiente escolar, estudar em escolas com mais de 1.000 alunos (RP=1,22; IC: 1,12-1,33) e com presença de cantina (RP=1,15; IC: 1,08-1,22) determinaram a baixa adesão. Os resultados demonstram importante efeito do contexto escolar na determinação do consumo da alimentação escolar por adolescentes.

Adesão à alimentação escolar por adolescentes brasileiros: determinantes individuais e do contexto escolar / Acceptance of school food by Brazilian adolescents: individual and school context determinants

Resumo Objetivou-se avaliar a adesão à alimentação escolar por adolescentes brasileiros considerando determinantes individuais e do contexto escolar. Foram avaliados 10.262 adolescentes de escolas públicas da Pesquisa Nacional de Saúde do Escolar de 2015. Regressão multinível foi utilizada para estimar o efeito de variáveis do contexto individual e do ambiente escolar na ocorrência da baixa adesão à alimentação escolar por adolescentes. A prevalência dessa baixa adesão (consumo da alimentação escolar ≤2dias/semana) foi 64,2% nesse grupo. O modelo explicativo evidenciou menor adesão a essa prática entre adolescentes do sexo feminino (RP=1,09; IC: 1,03-1,14), entre aqueles com 15 anos ou mais de idade (RP=1,08; IC: 1,02-1,14), que tinham consumo regular de refrigerantes (RP=1,09; IC: 1,03-1,15), que não realizavam regularmente almoço e jantar com pais e responsáveis (RP=1,08; IC: 1,02-1,14), e que moravam em domicílios com menos de 4 pessoas (RP=1,07; IC: 1,02-1,13). Em relação ao ambiente escolar, estudar em escolas com mais de 1.000 alunos (RP=1,22; IC: 1,12-1,33) e com presença de cantina (RP=1,15; IC: 1,08-1,22) determinaram a baixa adesão. Os resultados demonstram importante efeito do contexto escolar na determinação do consumo da alimentação escolar por adolescentes.

Abstract The scope of this study was to evaluate the acceptance of school food by Brazilian adolescents, taking individual and school context determinants into consideration. A total of 10,262 adolescents in public schools of the 2015 Brazilian National Survey of School Health (PeNSE 2015) were assessed. Multilevel regression was used to estimate the effect of variables of the individual context and the school environment on low acceptance of school food by adolescents. The prevalence of low acceptance (consumption of school meals ≤ 2 days/week) was 64.2% in this group. The explanatory model showed less acceptance of this practice among female adolescents (PR=1.09; CI: 1.03-1.14), among those aged 15 years or older (PR=1.08; CI: 1.02-1.14), those who regularly consumed soft drinks (PR=1.09; CI: 1.03-1.15), those who did not regularly have lunch and dinner with parents and guardians (PR=1.08; CI: 1.02-1.14), and those who lived in households with less than 4 people (PR=1.07; CI: 1.02-1.13). Concerning the school environment, studying in schools with more than 1,000 students (PR=1.22; CI: 1.12-1.33) and the presence of a cafeteria (PR=1.15; CI: 1.08-1.22) led to low acceptance. The results revealed the importance of the school context in determining the consumption of school meals by adolescents.

Insegurança alimentar e nutricional no Brasil e sua correlação com indicadores de vulnerabilidade / Food and nutritional insecurity in Brazil and its correlation with vulnerability markers

Resumo O objetivo do estudo foi analisar a distribuição espaço-temporal da prevalência de IAN nas Unidades de Federação (UF) do Brasil e sua correlação com indicadores de vulnerabilidade. Estudo ecológico, com dados da Pesquisa Nacional Amostra de Domicílios (2004, 2009 e 2013) e do Altas Brasil (2010). Realizou-se análise temporal da distribuição espacial das prevalências de IAN. Na análise espacial bivariada foi utilizado o Índice de Moran. As prevalências de IAN diminuíram nos anos analisados e apresentaram correlação espacial negativa e moderada com o IDH; positiva e moderada com porcentagem de extremamente pobres, mortalidade infantil, índice de vulnerabilidade social, índice de vulnerabilidade social capital humano; positiva e forte com índice de vulnerabilidade social renda e trabalho. Conclui-se que houve diminuição da prevalência de IAN nos anos analisados e que o território brasileiro apresentou dois padrões distintos: territórios com maiores prevalências de IAN e piores condições de renda, trabalho e saúde infantil nas regiões Norte e Nordeste; e territórios com menores prevalências de IAN e menor vulnerabilidade nas regiões Centro-Oeste, Sudeste e Sul.

Abstract This study aimed to analyze space-time distribution of the prevalence of food and nutritional insecurity (FNI) in the Brazilian Federative Units and their correlation with vulnerability markers. This is an ecological study, with data from the National Household Sample Survey (2004, 2009 and 2013) and Atlas Brazil (2010). A time analysis of the spatial distribution of FNI prevalence was performed. Moran's Index was used in bivariate spatial analysis. The prevalence of FNI have decreased along the years studied and showed a negative and moderate spatial correlation with the Human Development Index; a positive and moderate correlation with the percentage of the extremely poor, child mortality, social vulnerability index, human capital social vulnerability index; and positive and strong correlation with income and work social vulnerability index. We can conclude that there was a lower prevalence of FNI in the analyzed years and that the Brazilian territory showed two distinct patterns: territories with higher FNI prevalence and worse conditions as regards income, work and child health in the North and Northeast; and territories with lower FNI prevalence and lower vulnerability in the Midwest, Southeast and South.

Food and nutritional insecurity in Brazil and its correlation with vulnerability markers. / Insegurança alimentar e nutricional no Brasil e sua correlação com indicadores de vulnerabilidade.

This study aimed to analyze space-time distribution of the prevalence of food and nutritional insecurity (FNI) in the Brazilian Federative Units and their correlation with vulnerability markers. This is an ecological study, with data from the National Household Sample Survey (2004, 2009 and 2013) and Atlas Brazil (2010). A time analysis of the spatial distribution of FNI prevalence was performed. Moran's Index was used in bivariate spatial analysis. The prevalence of FNI have decreased along the years studied and showed a negative and moderate spatial correlation with the Human Development Index; a positive and moderate correlation with the percentage of the extremely poor, child mortality, social vulnerability index, human capital social vulnerability index; and positive and strong correlation with income and work social vulnerability index. We can conclude that there was a lower prevalence of FNI in the analyzed years and that the Brazilian territory showed two distinct patterns: territories with higher FNI prevalence and worse conditions as regards income, work and child health in the North and Northeast; and territories with lower FNI prevalence and lower vulnerability in the Midwest, Southeast and South.

O objetivo do estudo foi analisar a distribuição espaço-temporal da prevalência de IAN nas Unidades de Federação (UF) do Brasil e sua correlação com indicadores de vulnerabilidade. Estudo ecológico, com dados da Pesquisa Nacional Amostra de Domicílios (2004, 2009 e 2013) e do Altas Brasil (2010). Realizou-se análise temporal da distribuição espacial das prevalências de IAN. Na análise espacial bivariada foi utilizado o Índice de Moran. As prevalências de IAN diminuíram nos anos analisados e apresentaram correlação espacial negativa e moderada com o IDH; positiva e moderada com porcentagem de extremamente pobres, mortalidade infantil, índice de vulnerabilidade social, índice de vulnerabilidade social capital humano; positiva e forte com índice de vulnerabilidade social renda e trabalho. Conclui-se que houve diminuição da prevalência de IAN nos anos analisados e que o território brasileiro apresentou dois padrões distintos: territórios com maiores prevalências de IAN e piores condições de renda, trabalho e saúde infantil nas regiões Norte e Nordeste; e territórios com menores prevalências de IAN e menor vulnerabilidade nas regiões Centro-Oeste, Sudeste e Sul.

[Dietary patterns of the elderly in Brazil: National Heath Survey, 2013]. / Padrões alimentares de idosos no Brasil: Pesquisa Nacional de Saúde, 2013.

The study sought to identify dietary patterns and associated factors of elderly Brazilians. It involved a cross-sectional study based on data from the National Health Survey ("PNS/2013") of 11,177 elderly individuals, whose dietary patterns were identified by cluster analysis. Poisson regression with robust variance was used for the analysis of associated factors. The cluster analysis produced 2 clusters of dietary patterns, one healthy (55.4%), with greater consumption of raw and cooked vegetables and legumes, chicken, fruits, natural fruit juices and milk. And an unhealthy cluster (44.6%), with greater consumption of red meat and soft drinks or artificial juices. The prevalence of the healthy dietary pattern was greater for females (PR = 1.32, 95% CI 1.25- 1.40), Caucasian (PR = 1.09, 95% CI 1.02-1.15), elderly individuals with graduate or post-graduate degree (PR=1.56, 95% CI 1.41-1.72), living in the Southeast (PR = 1.54, 95% CI, 1.33-1.79) and South (PR = 1.51, 95% CI 1.30-1.76), non-smokers (PR = 1.19, 95% CI, 1.07-1.31) and physically active (PR = 1.24, 95% CI, 1.17-1.32). These results indicated an association between better social conditions and beneficial life habits with the consumption of healthy foods, reinforcing the hypothesis of social determination and the coexistence of health behaviors.

Objetivou-se identificar padrões alimentares de idosos brasileiros e seus fatores associados. Estudo transversal realizado a partir de dados da Pesquisa Nacional de Saúde (PNS/2013) de 11.177 idosos, cujos padrões alimentares foram identificados a partir de análise de "cluster". Regressão de Poisson com variância robusta foi utilizada para a análise de fatores associados. A análise de "cluster" produziu 2 padrões alimentares, um saudável (55,4%), com maior consumo de verduras e legumes crus e cozidos, frango, frutas, sucos de frutas naturais e leite. E outro não saudável (44,6%), com maior consumo de carne vermelha e refrigerante ou suco artificial. As prevalências do padrão alimentar saudável foram maiores em idosos do sexo feminino (RP = 1,32; IC95% 1,25-1,40), cor/raça branca (RP = 1,09; IC95% 1,02-1,15), idosos com graduação ou pós-graduação (RP = 1,56; IC95% 1,41-1,72), residentes nas regiões Sudeste (RP = 1,54; IC95% 1,33-1,79) e Sul (RP = 1,51; IC95% 1,30-1,76), que não fumavam (RP = 1,19; IC95% 1,07-1,31) e que praticavam atividade física (RP = 1,24; IC95% 1,17-1,32). Esses resultados indicaram associação entre melhores condições sociais e hábitos de vida benéficos com o consumo de alimentos saudáveis, reforçando a hipótese da determinação social e da coexistência dos comportamentos de saúde.

Padrões alimentares de idosos no Brasil: Pesquisa Nacional de Saúde, 2013 / Dietary patterns of the elderly in Brazil: National Heath Survey, 2013

Resumo Objetivou-se identificar padrões alimentares de idosos brasileiros e seus fatores associados. Estudo transversal realizado a partir de dados da Pesquisa Nacional de Saúde (PNS/2013) de 11.177 idosos, cujos padrões alimentares foram identificados a partir de análise de "cluster". Regressão de Poisson com variância robusta foi utilizada para a análise de fatores associados. A análise de "cluster" produziu 2 padrões alimentares, um saudável (55,4%), com maior consumo de verduras e legumes crus e cozidos, frango, frutas, sucos de frutas naturais e leite. E outro não saudável (44,6%), com maior consumo de carne vermelha e refrigerante ou suco artificial. As prevalências do padrão alimentar saudável foram maiores em idosos do sexo feminino (RP = 1,32; IC95% 1,25-1,40), cor/raça branca (RP = 1,09; IC95% 1,02-1,15), idosos com graduação ou pós-graduação (RP = 1,56; IC95% 1,41-1,72), residentes nas regiões Sudeste (RP = 1,54; IC95% 1,33-1,79) e Sul (RP = 1,51; IC95% 1,30-1,76), que não fumavam (RP = 1,19; IC95% 1,07-1,31) e que praticavam atividade física (RP = 1,24; IC95% 1,17-1,32). Esses resultados indicaram associação entre melhores condições sociais e hábitos de vida benéficos com o consumo de alimentos saudáveis, reforçando a hipótese da determinação social e da coexistência dos comportamentos de saúde.

Abstract The study sought to identify dietary patterns and associated factors of elderly Brazilians. It involved a cross-sectional study based on data from the National Health Survey ("PNS/2013") of 11,177 elderly individuals, whose dietary patterns were identified by cluster analysis. Poisson regression with robust variance was used for the analysis of associated factors. The cluster analysis produced 2 clusters of dietary patterns, one healthy (55.4%), with greater consumption of raw and cooked vegetables and legumes, chicken, fruits, natural fruit juices and milk. And an unhealthy cluster (44.6%), with greater consumption of red meat and soft drinks or artificial juices. The prevalence of the healthy dietary pattern was greater for females (PR = 1.32, 95% CI 1.25- 1.40), Caucasian (PR = 1.09, 95% CI 1.02-1.15), elderly individuals with graduate or post-graduate degree (PR=1.56, 95% CI 1.41-1.72), living in the Southeast (PR = 1.54, 95% CI, 1.33-1.79) and South (PR = 1.51, 95% CI 1.30-1.76), non-smokers (PR = 1.19, 95% CI, 1.07-1.31) and physically active (PR = 1.24, 95% CI, 1.17-1.32). These results indicated an association between better social conditions and beneficial life habits with the consumption of healthy foods, reinforcing the hypothesis of social determination and the coexistence of health behaviors.

Spatial correlation between excess weight, purchase of ultra-processed foods, and human development in Brazil. / Correlação espacial entre o excesso de peso, aquisição de alimentos ultraprocessados e o desenvolvimento humano no Brasil.

The aim of this study was to analyze the spatial distribution of excess weight in Brazil and its correlation with household food insecurity, purchase of foods by type of processing, and Human Development Index (HDI). An ecological study was undertaken using data from three surveys conducted by the Brazilian Institute of Geography and Statistics. Spatial analysis techniques were used to perform univariate and bivariate analysis. The prevalence of excess weight was 34.2% (CI 95% 33.8-34.6%). Excess weight showed a moderate and significant spatial autocorrelation (0.581; p = 0.01), with higher prevalence in states in the South, Southeast and Center-West regions. A positive moderate spatial correlation was shown between the prevalence of excess weight and HDI (0.605; p < 0.05) and purchase of ultra-processed foods (0.559; p < 0.05), while a negative moderate spatial correlation was observed between prevalence of excess weight and household food insecurity (-0.561; p < 0.05). It can be concluded that there is an unequal distribution of excess weight across Brazil. The highest prevalence rates were found in states in the Southeast, South, and Center-West regions, associated with higher HDI values and higher ultra-processed food purchases as a proportion of overall household food purchases.

O objetivo foi analisar a distribuição espacial da prevalência de excesso de peso e sua correlação com insegurança alimentar, aquisição de alimentos por tipo de processamento e Índice de Desenvolvimento Humano (IDH), no Brasil. Estudo ecológico, com dados de três inquéritos do Instituto Brasileiro de Geografia e Estatística (IBGE). Utilizou-se técnicas de estatística espacial para análise univariada e bivariada. A prevalência de excesso de peso encontrada para o Brasil foi de 34,2% (IC95% 33,8-34,6%). O excesso de peso apresentou autocorrelação espacial moderada (0,581; p = 0,01) e maiores prevalências nos estados das regiões Sul, Sudeste e Centro-Oeste. As prevalências de excesso de peso apresentaram correlação espacial positiva e moderada com o IDH (0,605; p< 0,05), proporção de aquisição domiciliar de produtos alimentícios ultraprocessados (0,559; p< 0,05); e correlação negativa e moderada com a prevalência de domicílios em insegurança alimentar (-0,561; p< 0,05). Conclui-se que a ocorrência de excesso de peso encontrava-se desigualmente distribuída no território brasileiro. As prevalências mais elevadas foram encontradas nos estados do Sudeste, Sul e Centro-Oeste, associadas a maiores valores de IDH e proporções de aquisição de produtos alimentícios ultraprocessados.

Correlação espacial entre o excesso de peso, aquisição de alimentos ultraprocessados e o desenvolvimento humano no Brasil / Spatial correlation between excess weight, purchase of ultra-processed foods, and human development in Brazil

Resumo O objetivo foi analisar a distribuição espacial da prevalência de excesso de peso e sua correlação com insegurança alimentar, aquisição de alimentos por tipo de processamento e Índice de Desenvolvimento Humano (IDH), no Brasil. Estudo ecológico, com dados de três inquéritos do Instituto Brasileiro de Geografia e Estatística (IBGE). Utilizou-se técnicas de estatística espacial para análise univariada e bivariada. A prevalência de excesso de peso encontrada para o Brasil foi de 34,2% (IC95% 33,8-34,6%). O excesso de peso apresentou autocorrelação espacial moderada (0,581; p = 0,01) e maiores prevalências nos estados das regiões Sul, Sudeste e Centro-Oeste. As prevalências de excesso de peso apresentaram correlação espacial positiva e moderada com o IDH (0,605; p< 0,05), proporção de aquisição domiciliar de produtos alimentícios ultraprocessados (0,559; p< 0,05); e correlação negativa e moderada com a prevalência de domicílios em insegurança alimentar (-0,561; p< 0,05). Conclui-se que a ocorrência de excesso de peso encontrava-se desigualmente distribuída no território brasileiro. As prevalências mais elevadas foram encontradas nos estados do Sudeste, Sul e Centro-Oeste, associadas a maiores valores de IDH e proporções de aquisição de produtos alimentícios ultraprocessados.

Abstract The aim of this study was to analyze the spatial distribution of excess weight in Brazil and its correlation with household food insecurity, purchase of foods by type of processing, and Human Development Index (HDI). An ecological study was undertaken using data from three surveys conducted by the Brazilian Institute of Geography and Statistics. Spatial analysis techniques were used to perform univariate and bivariate analysis. The prevalence of excess weight was 34.2% (CI 95% 33.8-34.6%). Excess weight showed a moderate and significant spatial autocorrelation (0.581; p = 0.01), with higher prevalence in states in the South, Southeast and Center-West regions. A positive moderate spatial correlation was shown between the prevalence of excess weight and HDI (0.605; p < 0.05) and purchase of ultra-processed foods (0.559; p < 0.05), while a negative moderate spatial correlation was observed between prevalence of excess weight and household food insecurity (-0.561; p < 0.05). It can be concluded that there is an unequal distribution of excess weight across Brazil. The highest prevalence rates were found in states in the Southeast, South, and Center-West regions, associated with higher HDI values and higher ultra-processed food purchases as a proportion of overall household food purchases.

Role of the C-terminal extension peptide of plastid located glutamine synthetase from Medicago truncatula: Crucial for enzyme activity and needless for protein import into the plastids.

Glutamine synthetase (GS), a key enzyme in plant nitrogen metabolism, is encoded by a small family of highly homologous nuclear genes that produce cytosolic (GS1) and plastidic (GS2) isoforms. Compared to GS1, GS2 proteins have two extension peptides, one at the N- and the other at the C-terminus, which show a high degree of conservation among plant species. It has long been known that the N-terminal peptide acts as a transit peptide, targeting the protein to the plastids however, the function of the C-terminal extension is still unknown. To investigate whether the C-terminal extension influences the activity of the enzyme, we produced a C-terminal truncated version of Medicago truncatula GS2a in Escherechia coli and studied its catalytic properties. The activity of the truncated protein was found to be lower than that of MtGS2a and with less affinity for glutamate. The importance of the C-terminal extension for the protein import into the chloroplast was also assessed by transient expression of fluorescently-tagged MtGS2a truncated at the C-terminus, which was correctly detected in the chloroplast. The results obtained in this work demonstrate that the C-terminal extension of M. truncatula GS2a is important for the activity of the enzyme and does not contain crucial information for the import process.