Dietary patterns and biochemical markers related to diabetes mellitus: an association analysis based on data from the Study of Cardiovascular Risk in Adolescents (ERICA).

OBJECTIVE: The aim of this study was to investigate the association between dietary patterns and biochemical markers related to diabetes mellitus (DM): glucose, insulin, glycated hemoglobin (HbA1c), and homeostasis model assessment of insulin resistance index from 35 454 Brazilian adolescents 12 to 17 y of age. METHODS: Dietary patterns were derived using factor analysis by the principal components method. The data originated from the school-based study ERICA (Study of Cardiovascular Risk in Adolescents) carried out between 2013 and 2014. Linear regression models analyzed the associations. RESULTS: Three dietary patterns were found: traditional Brazilian, bread and coffee, and Western. An inverse association was found in young girls between the traditional Brazilian pattern and fasting glucose (ß = -0.76; P = 0.005) and HbA1c in the second and third tertiles (ß = -0.04; P = 0.002; ß = -0 .06; P < 0.001), and the Western pattern with HbA1c (ß = -0.02; P = 0.035). In boys, a positive association was found between the second tertile of the dietary pattern and insulin (ß = 0.48; P = 0.009) and homeostasis model assessment of insulin resistance index (ß = 0.11; P = 0.012). CONCLUSIONS: This study showed that the traditional Brazilian pattern was inversely associated with blood glucose and HbA1c values in girls. Furthermore, the data suggest that there is an important difference between boys and girls in the association of dietary patterns and the markers used.

Omega-3 and omega-6 fatty acids food intake and metabolic syndrome in adolescents 12 to 17 years old: A school-based cross-sectional study.

BACKGROUND & AIMS: Fatty acids (FAs) of the omega-3 and omega-6 family are considered essential, and adequate intake seems to be associated with lower risk of developing chronic non-communicable diseases. The objective was to evaluate the association of omega-3 and omega-6 FAs dietary intake with the prevalence of MS and its components waist circumference (WC), blood pressure (BP), fasting blood glucose, triglycerides and High Density Lipoprotein - cholesterol (HDL-c) in Brazilian adolescents aged 12-17 years. METHODS: This is a school-based cross-sectional investigation, using data from the Study of Cardiovascular Risks in Adolescents (ERICA), carried out between 2013 and 2014. The following variables were collected and assessed: 1) sociodemographic (sex, age, type of school, school location whether urban or rural and region of the country); 2) food consumption was measured through a 24-h Food Recall (24 hR), and a second 24 hR was applied to 7% of the total sample; 3) anthropometrics (weight, height, WC), BP and biochemical (glycemia, triglycerides and HDL-c) were also assessed. Logistic regression analysis was performed according to gender and age group. RESULTS: A total of 36,751 adolescents participated in the study. The intake of omega-3 FAs in the total population was 1.71 g/day and of omega-6 FAs, 13.56 g/day, with an omega-6/omega-3 ratio of 7.93:1. It was found that higher intake of omega-3 FAs was associated with an 53% lower chance of low HDL-c. For omega-6 FAs, no significant results were found. CONCLUSIONS: The findings indicated an association between omega-3 FAs and HDL-c. More studies are needed to elucidate the effects of omega-6 FAs.

Association between dietary patterns and carotid intima-media thickness: cross-sectional analysis of ELSA-Brasil study.

PURPOSE: We aimed to perform a cross-sectional evaluation of the association between dietary patterns and carotid intima-media thickness (cIMT), using baseline data from the Brazilian Longitudinal Study of Adult Health. METHODS: The participants with measurement of the cIMT were included (n = 9,624). cIMT was evaluated in a continuous way and categorized as < 75th and ≥ 75th and ≤ 0.9 mm and > 0.9 mm. Dietary patterns (DPs) were identified by principal component factor analysis. Linear and logistic regression models were used to evaluate the association between cIMT and DPs. RESULTS: Three DPs were derived. For each unit increase in the convenience DP score, the odds for cIMT ≥ 75th increased by 13% (OR 1.13; 95% CI 1.05: 1.22) and for cIMT > 0.9 mm increased by 14% (OR 1.14; 95% CI 1.07: 1.22) in the fully adjusted model. In contrast, each unit increase in the prudent DP score decreased by 8% the odds of having cIMT ≥ 75th (OR 0.92; 95% CI 0.86: 0.98) and by 11% of cIMT > 0.9 mm (OR 0.89; 95% CI 0.84: 0.95). Furthermore, each increase in the convenience DP score was associated with increase in the cIMT (ß 0.01; 95% CI 0.01: 0.02), while each increase in the prudent DP score was associated with decrease in the cIMT (ß -0.01; -0.01; -0.01) in linear regression models. CONCLUSIONS: Our results demonstrate that those individuals with adherence to the convenience dietary pattern are more likely to have high cIMT, while those with adherence to a prudent dietary pattern have lower odds for this characteristic.

Trajetória antropométrica e padrões alimentares: análise do Estudo Longitudinal de Saúde do Adulto (ELSA-Brasil) / Anthropometric trajectory and dietary patterns: analysis of Longitudinal Study of Adult Health (ELSA-Brasil)

Apesar da indiscutível relação entre consumo alimentar e obesidade, ainda há debate na literatura sobre o papel da composição da dieta no aumento da adiposidade. A análise de padrões alimentares é um método que considera a dieta de forma global e pode contribuir para decifrar essa relação entre dieta e aumento de adiposidade. Esta tese teve como objetivo investigar a associação entre padrões alimentares no baseline e marcadores de adiposidade ao longo do tempo. Estudo longitudinal que analisou dados do Estudo Longitudinal de Saúde do Adulto (ELSA-Brasil), realizado com indivíduos de 35 a 74 anos de idade (N=15.105). Os dados de consumo alimentar, obtidos no baseline por meio de Questionário de Frequência Alimentar (QFA), foram avaliados por três diferentes métodos de análise de padrões alimentares: 1) análise fatorial (AF), 2) treelet transform (TT) e 3) reduced rank regression (RRR). As associações foram avaliadas por meio de modelos lineares de efeitos mistos. Foi identificado um padrão conveniência marcado pelo consumo de doces e sobremesas, lanches, carne vermelha e processada, e refrigerantes comum aos três métodos aplicados. Além disso, os métodos de AF e TT identificaram um padrão marcado pelo consumo de cereais, frutas, vegetais, peixe e suco de frutas em comum. Adicionalmente o método de AF identificou um padrão tradicional brasileiro marcado pelo consumo de arroz, feijão e carne vermelha, enquanto o método TT identificou um padrão marcado pelo alto consumo de arroz e feijão e baixo consumo de carne vermelha e dos grupos alimentares presentes no padrão conveniência. Neste estudo, o tempo médio de follow-up foi de 8,2 anos. Maior adesão ao padrão conveniência, independente do método, foi consistente e significativamente associado com as medidas longitudinais de adiposidade. Maior adesão ao padrão tradicional brasileiro foi associado com aumento de percentual de gordura e índice de massa de gordura ao longo do tempo. Enquanto maior adesão ao padrão marcado pelo alto consumo de arroz e feijão e baixo consumo de carne vermelha foi consistentemente associado com redução dos marcadores de adiposidade ao longo do tempo. Por fim, maior adesão ao padrão prudente identificado pelo método de AF foi associado com redução em todos os marcadores de adiposidade, exceto peso corporal e o mesmo padrão identificado pelo método TT foi associado apenas com aumento de peso corporal ao longo do tempo de follow-up. O padrão alimentar derivado pelo método RRR explicando os valores séricos de aminoácido de cadeia ramificada, foi caracterizado pelo alto consumo de arroz, feijão, carnes vermelha, de frango e processada, refrigerantes, lanches e pasta e simultaneamente caracterizado pelo baixo consumo de cereais e leite. Maior adesão a este padrão alimentar foi consistentemente associado com aumento da adiposidade ao longo do período de follow-up. A aplicação de três métodos de análise de padrão alimentar permitiu identificar nuances na composição da dieta que podem explicar o aumento de adiposidade na população.

Despite the well-known relationship between diet and obesity, there is still some debate on how the diet composition influences the adiposity gain. Dietary pattern analysis emerges as an approach to evaluate the diet in a holistic way, considering the interaction between food groups and contributing to disentangle this relation between diet and adiposity. This thesis aimed to investigate the association between baseline dietary patterns and adiposity markers over the follow-up period. Methods: Longitudinal study embedded in the Longitudinal Study of Adult Health (ELSA-Brasil), a multicenter national cohort that recruited individuals aged 35 to 74 years old (N=15,105). Dietary consumption data was assessed at baseline by a food frequency questionnaire (FFQ) and the study populations dietary patterns were identified using three different statistical methods: 1) factor analysis (FA), 2) treelet transform (TT), 3) reduced rank regression (RRR). The associations between baseline dietary patterns and adiposity were computed using linear mixed-models. Applying tree different methods to identify dietary patterns, we found a common dietary pattern characterised by the consumption of sweets and desserts, snacks, red meat, processed meat, and soft drinks, labelled as convenience. Additionally, the FA and TT identified a similar dietary pattern characterised by cereals, fruits, vegetables, fish, and fruit juice, labelled as prudent. FA also identified a dietary pattern characterized by rice, beans, and red meat, representing a traditional Brazilian meal, while TT analysis identified a dietary pattern characterized by high consumption of rice and beans and low consumption of red meat and other groups present in the convenience dietary pattern, labelled as rice and beans. This study had a mean follow-up time of 8.2 years. A convenience dietary pattern was associated with higher adiposity measures over time. The Brazilian traditional dietary pattern was associated with lower weight over the follow-up, however for the body composition measures, this dietary pattern was associated with higher body fat percentage and fat mass index over the follow-up period. The rice and beans dietary pattern, characterized by high consumption of rice and beans combined with low consumption of red meat, was associated with lower levels of adiposity indicators. Lastly, the prudent dietary pattern identified by FA was associated with lower levels of adiposity indicators, except for weight. The same dietary pattern identified by TT analysis was associated with higher weight over the follow-up period. The RRR-dietary pattern explaining the circulating levels of branched-chain amino acids was characterized by high consumption of rice, beans, red and processed meat, poultry, soft drinks, snacks, pasta, and low consumption of cereals and milk. This RRR-dietary pattern was associated with higher adiposity for all indicators over the follow-up period. Applying tree different statistical methods to identify dietary patterns in the same population allowed us to find some nuances in the diet composition and further insights on how the dietary patterns of a population from Brazil may explain the changes on adiposity levels over time.

Scientific evidence of the association between oral intake of OMEGA-3 and OMEGA-6 fatty acids and the metabolic syndrome in adolescents: A systematic review.

AIMS: To conduct a systematic review of the literature on the scientific evidence of the oral intake of omega-3 and omega-6 FAs and metabolic syndrome (MS) in adolescents. DATA SYNTHESIS: The study was registered in PROSPERO (number 42020185370). Studies were carried out with adolescents aged 10-19 years, who presented as intervention/exposure the oral intake of omega-3 and/or omega-6 fatty acids (FAs), in the databases PubMed, Scopus, Web of Science, LILACS, CENTRAL, and PQDT Global e BDTD. The tools used to assess the risk of bias were RoB 2.0, Agency for Healthcare Research and Quality (AHRQ), and Newcastle-Ottawa Scale. Fifteen papers retrieved published from 2010 to 2019 were included (n = 3534); nine were randomized studies and controlled clinical trials, four were cross-sectional studies, one was a retrospective cohort study, and one case-control study. No studies have evaluated the effect or association of omega-3 and/or of omega-6 FAs with actual MS, only with its components. The randomized clinical trials identified the effects of omega-3 FA on the decrease in blood pressure (n = 1 out of six), glycemia (n = 2 out of seven), and triglycerides (n = 5 out of eight), and the increase in HDL-c (n = 2 out of eight) considering the comparison between the group that received omega-3 FA and the control group. CONCLUSIONS: Scientific evidence is controversial on the association between oral intake of omega-3 FAs and MS in adolescents, due to the heterogeneity between studies and the divergence of results for the same MS component.

Association between body weight misperception and dietary patterns in Brazilian adolescents: Cross-sectional study using ERICA data.

The association between body image and eating behaviors or weight control strategies has been demonstrated in the scientific literature, but there is a lack of evidence on the association between weight misperception and food consumption indicators in adolescents. This study aimed to evaluate the association between weight misperception and dietary patterns (DPs) in the Brazilian Study of Cardiovascular Risks in Adolescents (ERICA). It was a national school-based cross-sectional study conducted among students aged 12-17 years. Data were collected in the form of anthropometric measurements, responses in self-answered questionnaires, and 24-h dietary recall. The following variables were assessed: weight underestimation and overestimation (independent variables), which were defined as the presence of a disagreement between nutritional status and self-perceived weight; dietary patterns (dependent variables), defined by a posteriori method using principal component factor analysis; and individual and demographic variables (covariates). Data analysis was performed using the Poisson regression models method, stratified by sex. A total of 52,038 adolescents with normal weights were evaluated. The weight misperception prevalence was 34.0% (95% confidence interval [CI]: 33.0, 35.0). Three DPs were identified: "Traditional Brazilian," "Processed meat sandwiches and coffee," and "Ultra-processed and sweet foods." In girls, weight underestimation was directly associated with the "Traditional Brazilian" (1.24; 95% CI: 1.08, 1.43) and "Ultra-processed and sweet foods" DPs (1.29; 95% CI: 1.09, 1.54), and overestimation was inversely associated with all the DPs. In boys, a direct association between underestimation and the "Ultra-processed and sweet foods" DP (1.29; 95% CI: 1.10, 1.51) was found. Overestimation was inversely associated with the "Traditional Brazilian" DP (0.79; 95% CI: 0.63, 0.99). The inverse association between overestimation and the "Traditional Brazilian" DP, and the direct association between underestimation and the "Ultra-processed and sweet foods" DP indicated that weight misperception was related to unhealthy eating habits in Brazilian adolescents.

ASSOCIATION BETWEEN BREASTFEEDING AND OVERWEIGHT/OBESITY IN SCHOOLCHILDREN AGED 7-14 YEARS.

OBJECTIVE: To evaluate the prevalence of breastfeeding (BF) and the association between occurrence/duration of BF and overweight/obesity in schoolchildren aged 7-14 years. METHODS: This is a cross-sectional study, conducted in 2012-2013, on schoolchildren aged 7-14 years from Florianópolis, Santa Catarina, Southern Brazil. Weight and height were measured according to procedures of the World Health Organization. Breastfeeding and sociodemographic data were obtained from a questionnaire responded by parents/guardians. BF was categorized as a dichotomous variable (yes/no) and according to duration (months). Nutritional status was evaluated according to the Z score of the body mass index per age for sex and it was categorized into two groups: normal weight (

Association between breastfeeding and overweight/obesity in schoolchildren aged 7-14 years / Associação entre aleitamento materno e sobrepeso/obesidade em escolares de 7-14 anos

ABSTRACT Objective: To evaluate the prevalence of breastfeeding (BF) and the association between occurrence/duration of BF and overweight/obesity in schoolchildren aged 7-14 years. Methods: This is a cross-sectional study, conducted in 2012-2013, on schoolchildren aged 7-14 years from Florianópolis, Santa Catarina, Southern Brazil. Weight and height were measured according to procedures of the World Health Organization. Breastfeeding and sociodemographic data were obtained from a questionnaire responded by parents/guardians. BF was categorized as a dichotomous variable (yes/no) and according to duration (months). Nutritional status was evaluated according to the Z score of the body mass index per age for sex and it was categorized into two groups: normal weight (<Z score+1) and overweight/obesity (≥Z score+1). The adjusted analysis was performed by logistic regression in two age strata (age groups of 7-10 and 11-14 years). Results: 6.6% of schoolchildren had never breastfed; 16.8% had been breastfed for ≤3 months; 16.7%, for 4-6 months; and 59.9%, for ≥7 months. No statistically significant differences were found in the occurrence and duration of BF between the age groups. The prevalence of overweight/obesity was 34.2%. For age groups (7-10 and 11-14 years), the prevalence of overweight/obesity was 36.7% and 29.8%, respectively. Chance of overweight/obesity for the age group of 7-10 years was lower among schoolchildren who were breastfed (OR=0.54; 95%CI 0.33-0.88), when compared with those who never breastfed. When categorized, the chance of overweight/obesity in the age group of 7-10 years was lower for duration of BF ≤3 months (OR=0.41; 95%CI 0.20-0.83), and 4-6 months (OR=0.48; 95%CI 0.28-0.82) when compared with children who never breastfed. Conclusions: BF for at least six months was associated with a lower chance of overweight/obesity for schoolchildren aged 7-10 years. No association was found for schoolchildren aged 11-14 years.

RESUMO Objetivo: Investigar prevalência e duração de aleitamento materno (AM) e sua associação com sobrepeso/obesidade em escolares de 7-14 anos. Métodos: Estudo transversal, realizado em 2012-2013, com escolares de 7-14 anos de Florianópolis, Santa Catarina. Peso e altura foram mensurados segundo preconizado pela Organização Mundial da Saúde (OMS). Dados sociodemográficos e sobre AM foram obtidos por questionários enviados aos responsáveis/cuidadores. A variável amamentação foi analisada como dicotômica (sim/não) e por duração (em meses). O perfil antropométrico foi avaliado por escore Z do índice de massa corporal (IMC) para a idade, segundo sexo, categorizado em: normal (<escore Z+1) e sobrepreso/obesidade (≥escore Z+1). Análises ajustadas foram realizadas (regressão logística) em dois estratos etários (7-10 e 11-14 anos). Resultados: 6,6% dos escolares nunca tinham sido amamentados, 16,8% foram amamentados por ≤3 meses, 16,7% por 4-6 meses e 59,9% por ≥7 meses. Não houve diferença estatística de ocorrência/duração de AM entre os grupos etários. A prevalência de sobrepeso/obesidade foi 34,2%. Nos grupos etários (7-10 e 11-14 anos), a prevalência foi 36,7% e 29,8%, respectivamente. A chance de sobrepeso/obesidade nos escolares de 7-10 anos foi menor entre aqueles que tinham sido amamentados (OR=0,54; IC95% 0,33-0,88), comparando com os nunca amamentados. Quando categorizada, a chance de ter sobrepeso/obesidade nos escolares de 7-10 anos foi menor quando a duração do AM foi ≤3 meses (OR=0,41; IC95% 0,20-0,83) e 4-6 meses (OR=0,48; IC95% 0,28-0,82), em comparação à ausência de AM. Conclusões: AM por pelo menos seis meses foi associado com menor chance de sobrepeso/obesidade para escolares de 7-10 anos. Não foi observada associação para o grupo 11-14 anos.

Usual intake and dietary sources of Selenium in adolescents: A cross-sectional school-based study.

BACKGROUND AND OBJECTIVES: Selenium is a mineral that constitutes selenoproteins and, therefore, has been studied, especially in cardiovascular diseases. Some risk factors for the development of these diseases, such as obesity, hypertension and dyslipidemia, have been observed early in life, including in childhood and adolescence, and food and nutrient intake is an important associated factor for their development. The aim of this study was to assess usual intake of selenium (Se) and dietary inadequacies regarding the consumption of this mineral, and to identify the main dietary sources of Se among 12-17 year-old Brazilian adolescents. METHODS: Data from the Study of Cardiovascular Risk in Adolescents, performed countrywide in the years 2013 and 2014, were used to estimate inadequate Se dietary intake. The National Cancer Institute's method was used, considering two days of 24 h dietary recall (24hR). The contribution of each food group to the total intake of Se was determined using a single 24hR, and was defined as a ratio between the total intake of Se and the percentage of Se in each food group, until reaching 95%. Food mentioned by adolescents were categorized into 39 food groups, according to macronutrient similarities. RESULTS: Data from 76,957 adolescents aged from 12-17 years (49.7% girls) from public and private schools were assessed. Selenium intake was according to recommendation levels. Mean Se intake ranged from 84.3 to 105.9 µg among sex and age groups. Considering the whole sample, meat, pasta, poultry, and fish were the food groups that contributed with the greatest amount of Se (representing 57.9% of total Se). Brazil nuts are consumed in bigger quantity only by 14-17 year-old girls, contributing to 1.6% of the Se in their diets. CONCLUSION: Brazilian adolescents have an adequate Se intake because of the high consumption of meat, pasta, and poultry. Although Brazil nuts are the most important dietary source of Se, adolescents consume them in very small amounts, leading to a small contribution in the total intake.

Dietary patterns of Brazilian adolescents according to geographic region: an analysis of the Study of Cardiovascular Risk in Adolescents (ERICA). / Padrões alimentares de adolescentes brasileiros por regiões geográficas: análise do Estudo de Riscos Cardiovasculares em Adolescentes (ERICA).

The study aimed to identify the dietary patterns of Brazilian adolescents in each of Brazil's five major geographic regions and verify possible differences in adherence to dietary patterns according to age, sex, and type of school. Data were analyzed from 71,298 adolescents 12 to 17 years of age that participated in the Study of Cardiovascular Risk in Adolescents (ERICA), a cross-sectional nationwide, multicenter, school-based survey. Food consumption data were obtained using a 24-hour food recall, and identification of dietary patterns used factor analysis. Associations between the adolescents' sociodemographic characteristics and dietary patterns were verified by linear regression analyses, stratified by age and adjusted for nutritional status, total energy intake, and physical activity. In the five geographic regions, three dietary patterns with similar characteristics were identified: traditional pattern, bread-and-coffee pattern, and unhealthy pattern. The North of Brazil showed a fourth dietary pattern characterized by typical regional foods, called the traditional-North pattern. In all five regions, male adolescents showed the highest adherence to the traditional pattern and the lowest adherence to the unhealthy pattern. Private school students showed higher adherence to the unhealthy pattern and lower adherence to the traditional pattern. The results suggest that in this sample of adolescents, males were associated with traditional Brazilian foods such as rice and beans, while higher socioeconomic status was associated with the consumption of unhealthy foods like sugary beverages and snacks.

O estudo teve como objetivo identificar os padrões alimentares de adolescentes brasileiros para cada uma das cinco regiões do país, e verificar se há diferença na adesão dos padrões alimentares de acordo com idade, sexo e tipo de escola. Foram analisados dados de 71.298 adolescentes de 12 a 17 anos que participaram do Estudo de Riscos Cardiovasculares em Adolescentes (ERICA), pesquisa transversal, nacional, multicêntrica e de base escolar. Os dados de consumo alimentar foram obtidos por meio de recordatório alimentar de 24hs, e para a identificação dos padrões alimentares foi aplicada análise fatorial. A associação entre as características dos adolescentes e os padrões alimentares foi verificada por meio de análises de regressão linear, estratificadas por idade e ajustadas por estado nutricional, ingestão energética total e atividade física. Nas cinco regiões foram identificados três padrões alimentares com características similares: padrão tradicional, padrão pão e café e padrão não saudável. A Região Norte apresentou um quarto padrão alimentar caracterizado por alimentos típicos da região: padrão tradicional Norte. Em todas as regiões, os adolescentes do sexo masculino registraram maior adesão ao padrão tradicional e menor adesão ao padrão não saudável. entre os estudantes de escolas privadas foi observada maior adesão ao padrão não saudável e menor adesão ao padrão tradicional. Os resultados sugerem que, entre os adolescentes avaliados, ser do sexo masculino foi associado ao maior consumo de alimentos tradicionalmente brasileiros como o arroz e feijão, já o maior nível socioeconômico esteve associado ao consumo de alimentos não saudáveis como bebidas açucaradas e lanches.

El objetivo del estudio fue identificar los patrones alimentarios de adolescentes brasileños para cada una de las cinco regiones del país, y verificar si existen diferencias en la adhesión a los patrones alimentarios, de acuerdo a la edad, sexo y tipo de escuela. Se analizaron datos de 71.298 adolescentes de 12 a 17 años que participaron en el Estudio de Riesgos Cardiovasculares en Adolescentes (ERICA), investigación transversal, nacional, multicéntrica y de base escolar. Los datos de consumo alimentario se obtuvieron mediante un recordatorio alimentario de 24h, y para la identificación de los patrones alimentarios se aplicó el análisis factorial. La asociación entre las características de los adolescentes y los patrones alimentarios se verificó mediante un análisis de regresión lineal, estratificado por edad y ajustado por estado nutricional, ingestión energética total y actividad física. En las cinco regiones se identificaron tres patrones alimentarios con características similares: patrón tradicional, patrón pan y café y patrón no saludable. La Región Norte presentó un cuarto patrón alimentario caracterizado por alimentos típicos de la región: patrón tradicional Norte. En todas las regiones, los adolescentes del sexo masculino registraron una mayor adhesión al patrón tradicional y menor adhesión al patrón no saludable. Entre los estudiantes de escuelas privadas se observó una mayor adhesión al patrón no saludable y menor adhesión al patrón tradicional. Los resultados sugieren que, entre los adolescentes evaluados, ser de sexo masculino se asoció a un mayor consumo de alimentos tradicionalmente brasileños como el arroz y frijoles, por otra parte, un mayor nivel socioeconómico estuvo asociado al consumo de alimentos no saludables como bebidas azucaradas y aperitivos.

Parental Perceived Travel Time to and Reported Use of Food Retailers in Association with School Children's Dietary Patterns.

Considering the association between the neighborhood food environment and individual eating behaviors, this study aimed to assess the association between parents' reported use of food facilities by their children, and parental perceived travel time to food facilities, with their children's dietary patterns. Parents reported the use of supermarkets, full-service and fast-food restaurants, and perceived travel time to these food retailers. To assess school children's food consumption, a previous day dietary recall was applied. Factor analysis was conducted to identify dietary patterns. To test the association between reported use and perceived travel time to food retailers and school children's dietary patterns, we performed multilevel linear regression analyses. Parents' reported use of supermarkets was associated with children's higher score in the "Morning/Evening Meal" pattern. The use of full-service and fast-food restaurants was associated with children's higher score in the "Fast Food" pattern. Higher parental perceived travel time to full-service and fast-food restaurants was associated with children's lower score in the "Fast Food" pattern. Although the use of full-service and fast-food restaurants was associated with a less healthy dietary pattern, the perception of living further away from these food retailers may pose a barrier for the use of these facilities.

Selenium intake and metabolic syndrome: A systematic review.

BACKGROUND & AIMS: Metabolic syndrome is a multi-causal disease. Its treatment includes lifestyle changes with a focus on weight loss. This systematic review assessed the association between Selenium intake and metabolic syndrome. METHODS: Data were collected mainly from four databases: PubMed, CENTRAL (Cochrane), Scopus and Web of Knowledge. Keywords related to metabolic syndrome, selenium, as well as metabolic syndrome features were searched. This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement. A systematic review protocol was registered at PROSPERO (n. 42016046321). Two reviewers independently screened 2957 abstracts. Six studies were included to perform data extraction with standardized spreadsheets. The risk of bias was assessed by using specific tools according to the design of the relevant studies. An assessment was carried out based on the appropriateness of the study reports accordingly to STROBE and the CONSORT-based checklist for each study design. RESULTS: Three studies found no association between Selenium intake and metabolic syndrome; two of them found an inverse association; and one study found a direct association between Selenium intake and metabolic syndrome. One study also showed an inverse association between Selenium intake and the prevalence of high waist circumference, high diastolic blood pressure, and hyperglycaemia in women. CONCLUSIONS: Overall, based on the argumentation and results of this study, it is possible to conclude that Selenium intake and metabolic syndrome are not clearly associated in adults and elderly.

Padrões alimentares de adolescentes brasileiros por regiões geográficas: análise do Estudo de Riscos Cardiovasculares em Adolescentes (ERICA) / Patrones alimentarios de adolescentes brasileños por regiones geográficas: análisis del Estudio de Riesgos Cardiovasculares en Adolescentes (ERICA) / Dietary patterns of Brazilian adolescents according to geographic region: an analysis of the Study of Cardiovascular Risk in Adolescents (ERICA)

O estudo teve como objetivo identificar os padrões alimentares de adolescentes brasileiros para cada uma das cinco regiões do país, e verificar se há diferença na adesão dos padrões alimentares de acordo com idade, sexo e tipo de escola. Foram analisados dados de 71.298 adolescentes de 12 a 17 anos que participaram do Estudo de Riscos Cardiovasculares em Adolescentes (ERICA), pesquisa transversal, nacional, multicêntrica e de base escolar. Os dados de consumo alimentar foram obtidos por meio de recordatório alimentar de 24hs, e para a identificação dos padrões alimentares foi aplicada análise fatorial. A associação entre as características dos adolescentes e os padrões alimentares foi verificada por meio de análises de regressão linear, estratificadas por idade e ajustadas por estado nutricional, ingestão energética total e atividade física. Nas cinco regiões foram identificados três padrões alimentares com características similares: padrão tradicional, padrão pão e café e padrão não saudável. A Região Norte apresentou um quarto padrão alimentar caracterizado por alimentos típicos da região: padrão tradicional Norte. Em todas as regiões, os adolescentes do sexo masculino registraram maior adesão ao padrão tradicional e menor adesão ao padrão não saudável. entre os estudantes de escolas privadas foi observada maior adesão ao padrão não saudável e menor adesão ao padrão tradicional. Os resultados sugerem que, entre os adolescentes avaliados, ser do sexo masculino foi associado ao maior consumo de alimentos tradicionalmente brasileiros como o arroz e feijão, já o maior nível socioeconômico esteve associado ao consumo de alimentos não saudáveis como bebidas açucaradas e lanches.

El objetivo del estudio fue identificar los patrones alimentarios de adolescentes brasileños para cada una de las cinco regiones del país, y verificar si existen diferencias en la adhesión a los patrones alimentarios, de acuerdo a la edad, sexo y tipo de escuela. Se analizaron datos de 71.298 adolescentes de 12 a 17 años que participaron en el Estudio de Riesgos Cardiovasculares en Adolescentes (ERICA), investigación transversal, nacional, multicéntrica y de base escolar. Los datos de consumo alimentario se obtuvieron mediante un recordatorio alimentario de 24h, y para la identificación de los patrones alimentarios se aplicó el análisis factorial. La asociación entre las características de los adolescentes y los patrones alimentarios se verificó mediante un análisis de regresión lineal, estratificado por edad y ajustado por estado nutricional, ingestión energética total y actividad física. En las cinco regiones se identificaron tres patrones alimentarios con características similares: patrón tradicional, patrón pan y café y patrón no saludable. La Región Norte presentó un cuarto patrón alimentario caracterizado por alimentos típicos de la región: patrón tradicional Norte. En todas las regiones, los adolescentes del sexo masculino registraron una mayor adhesión al patrón tradicional y menor adhesión al patrón no saludable. Entre los estudiantes de escuelas privadas se observó una mayor adhesión al patrón no saludable y menor adhesión al patrón tradicional. Los resultados sugieren que, entre los adolescentes evaluados, ser de sexo masculino se asoció a un mayor consumo de alimentos tradicionalmente brasileños como el arroz y frijoles, por otra parte, un mayor nivel socioeconómico estuvo asociado al consumo de alimentos no saludables como bebidas azucaradas y aperitivos.

The study aimed to identify the dietary patterns of Brazilian adolescents in each of Brazil's five major geographic regions and verify possible differences in adherence to dietary patterns according to age, sex, and type of school. Data were analyzed from 71,298 adolescents 12 to 17 years of age that participated in the Study of Cardiovascular Risk in Adolescents (ERICA), a cross-sectional nationwide, multicenter, school-based survey. Food consumption data were obtained using a 24-hour food recall, and identification of dietary patterns used factor analysis. Associations between the adolescents' sociodemographic characteristics and dietary patterns were verified by linear regression analyses, stratified by age and adjusted for nutritional status, total energy intake, and physical activity. In the five geographic regions, three dietary patterns with similar characteristics were identified: traditional pattern, bread-and-coffee pattern, and unhealthy pattern. The North of Brazil showed a fourth dietary pattern characterized by typical regional foods, called the traditional-North pattern. In all five regions, male adolescents showed the highest adherence to the traditional pattern and the lowest adherence to the unhealthy pattern. Private school students showed higher adherence to the unhealthy pattern and lower adherence to the traditional pattern. The results suggest that in this sample of adolescents, males were associated with traditional Brazilian foods such as rice and beans, while higher socioeconomic status was associated with the consumption of unhealthy foods like sugary beverages and snacks.

Utilization of food outlets and intake of minimally processed and ultra-processed foods among 7 to 14-year-old schoolchildren. A cross-sectional study

ABSTRACT BACKGROUND: Access to food retailers is an environmental determinant that influences what people consume. This study aimed to test the association between the use of food outlets and schoolchildren's intake of minimally processed and ultra-processed foods. DESIGN AND SETTING: This was a cross-sectional study conducted in public and private schools in Florianópolis, state of Santa Catarina, southern Brazil, from September 2012 to June 2013. METHODS: The sample consisted of randomly selected clusters of schoolchildren aged 7 to 14 years, who were attending 30 schools. Parents or guardians provided socioeconomic and demographic data and answered questions about use of food outlets. Dietary intake was surveyed using a dietary recall questionnaire based on the previous day's intake. The foods or food groups were classified according to the level of processing. Negative binomial regression was used for data analysis. RESULTS: We included 2,195 schoolchildren in the study. We found that buying foods from snack bars or fast-food outlets was associated with the intake frequency of ultra-processed foods among 11-14 years old in an adjusted model (incidence rate ratio, IRR: 1.11; 95% confidence interval, CI: 1.01;1.23). Use of butchers was associated with the intake frequency of unprocessed/minimally processed foods among children 11-14 years old in the crude model (IRR: 1.11; 95% CI: 1.01;1.22) and in the adjusted model (IRR: 1.11; 95% CI: 1.06;1.17). CONCLUSIONS: Use of butchers was associated with higher intake of unprocessed/minimally processed foods while use of snack bars or fast-food outlets may have a negative impact on schoolchildren's dietary habits.

Utilization of food outlets and intake of minimally processed and ultra-processed foods among 7 to 14-year-old schoolchildren. A cross-sectional study.

BACKGROUND: Access to food retailers is an environmental determinant that influences what people consume. This study aimed to test the association between the use of food outlets and schoolchildren's intake of minimally processed and ultra-processed foods. DESIGN AND SETTING: This was a cross-sectional study conducted in public and private schools in Florianópolis, state of Santa Catarina, southern Brazil, from September 2012 to June 2013. METHODS: The sample consisted of randomly selected clusters of schoolchildren aged 7 to 14 years, who were attending 30 schools. Parents or guardians provided socioeconomic and demographic data and answered questions about use of food outlets. Dietary intake was surveyed using a dietary recall questionnaire based on the previous day's intake. The foods or food groups were classified according to the level of processing. Negative binomial regression was used for data analysis. RESULTS: We included 2,195 schoolchildren in the study. We found that buying foods from snack bars or fast-food outlets was associated with the intake frequency of ultra-processed foods among 11-14 years old in an adjusted model (incidence rate ratio, IRR: 1.11; 95% confidence interval, CI: 1.01;1.23). Use of butchers was associated with the intake frequency of unprocessed/minimally processed foods among children 11-14 years old in the crude model (IRR: 1.11; 95% CI: 1.01;1.22) and in the adjusted model (IRR: 1.11; 95% CI: 1.06;1.17). CONCLUSIONS: Use of butchers was associated with higher intake of unprocessed/minimally processed foods while use of snack bars or fast-food outlets may have a negative impact on schoolchildren's dietary habits.