Effect of the dietary inflammatory potential on the trajectory of body adiposity in a Brazilian cohort of university students.

OBJECTIVES: University students are vulnerable to unhealthy eating habits that characterize a proinflammatory diet. This study aimed to estimate the dietary inflammatory index (DII) and its association with the trajectory of body adiposity markers in university students. METHODS: The study analyzed data from 685 students entering a Brazilian public university in 2016 and 2017 and followed until 2018. DII was estimated from 39 dietary parameters obtained by 24-h dietary recall. Body adiposity was assessed by anthropometric markers and the percentage of body fat. Linear mixed-effects models were used to estimate the trajectory of adiposity markers according to DII tertiles. RESULTS: After adjustment for confounding variables, at baseline, DII showed a positive association with increased percentage of body fat among men (ß = 0.52; 95% CI: 0.01; 1.03) and waist-to-height ratio (WHtR; ß = 0.15; 95% CI: 0.12; 0.18) and among women with all body adiposity markers: BMI (ß = 0.68; 95% CI: 0.30; 1.05), percentage of body fat (ß = 1.43; 95% CI: 0.74; 2.11), WC (ß = 1.15; 95% CI: 0.41; 1.89) and WHtR (ß = 0.13; 95% CI:0,10; 0.16). The rate of change of the outcome variables over time was not associated with DII at baseline. CONCLUSIONS: The diet of university students in this Brazilian cohort study was characterized as proinflammatory and it was associated with body adiposity markers.

Cesarean birth and risk of obesity from birth to adolescence: A cohort study.

BACKGROUND: Recent studies have shown associations between cesarean birth and overweight. However, very few studies have evaluated weight gain or adiposity throughout life, and the majority are restricted to analysis during childhood. The purpose of this study was to analyze the effect of cesarean birth on obesity risk from birth to adolescence. METHODS: The study sample was drawn from live births that occurred in 1999 and 2000 in Mato Grosso-Brazil. Participants were evaluated once when they were between 0 and 5 years of age and again after approximately 10 years (2009-2011). To measure the association between cesarean birth and obesity (Body Mass Index/age >+2 z-scores), we used generalized estimation equations (GEE) with binomial distribution and log-binomial models for repeated measures, controlled by the following confounding factors: weight and length at birth, sex, gestational age, breastfeeding, maternal age and schooling, economic class in childhood, and maternal smoking during pregnancy. The exposure-time interaction term was evaluated to verify differences in the change in the risk of obesity over time. RESULTS: 56.8% of children in the sample were born by cesarean birth. Children born by cesarean had a higher risk of obesity from birth through adolescence (RR = 1.22, 95% CI = 1.02; 1.46), even after adjusting for covariates, when compared with those born vaginally. However, the time-exposure interaction term was not significant, which indicates that there was no increased risk of obesity over time. CONCLUSION: Cesarean birth was positively associated with obesity from birth to adolescence, with a persistent risk in the period evaluated.

Incidence of depressive symptoms and its association with sociodemographic factors and lifestyle-related behaviors among Brazilian university students.

Entering university brings on changes in lifestyle and psychological stress and has been associated with increased risk of 1988 in college students. This study aimed to investigate the incidence of depressive symptoms and associated sociodemographic and lifestyle factors among university students. A dynamic cohort of freshmen was followed up for three years, starting at their entry to university (baseline) and then annually. A structured auto administered questionnaire was applied to obtain information on age, sex, economic class, living situation, smoking and drinking, sedentary and sleep behaviors, and change in physical activity after university admission. Depressive symptoms were assessed using the Patient Health Questionaire-9. Incidence and incidence rate of depressive symptoms were calculated. Poisson Regression with robust variance was used to identify risk factors associated to these disorders. A total of 1,034 students without depressive symptoms at baseline were investigated. The overall incidence of depressive symptoms was 28.3% and the incidence rate (IR) was 2.12, being greater for females (2.75) than males (1.65). The IR decreased over time for both males (from 2.61 to 0.41) and females (from 4.25 to 0.54). A greater risk of depressive symptoms was observed for younger male students compared to those ≥20 years old (IRRadj = 1.64) and for women who reported concomitant use of alcohol and tobacco compared to those that reported no smoking and no alcohol consumption. For both males (IRRadj = 2.80) and females (IRRadj = 1.91), severe stress level was associated with greater risk of depressive symptoms when compared to mild stress level. Depressive Symptoms occurred more significantly in females, in the early years of undergraduate course, in males <20 years old, and among those with high stress level. Understanding the possible causes of depression is essential to promote mental health and well-being among college student.

Skipping breakfast is associated with the presence of cardiometabolic risk factors in adolescents: Study of Cardiovascular Risks in Adolescents - ERICA.

Breakfast is considered as the most important meal of the day. The habit of skipping this meal in adolescence tends to remain until adulthood and has been associated with cardiometabolic risk factors. The present study estimated the prevalence of skipping breakfast and its association with cardiometabolic risk factors. This is a cross-sectional study with data from the Study of Cardiovascular Risks in Adolescents (ERICA), with a nationally representative sample of 36 956 Brazilian adolescents, aged 12-17 years, enrolled in public and private schools. The outcomes were excess body weight (BMI), central obesity (waist circumference and waist:height ratio), lipid profile (total cholesterol (TC), LDL-cholesterol, HDL-cholesterol and TAG) and glycidic profile (fasting glycaemia, fasting insulin and glycated Hb). The association between skipping breakfast and each outcome was estimated using multiple Poisson regression models (prevalence ratio (PR) and 95 % CI). Prevalence of skipping breakfast was 68·7 % and, after adjustments, it was associated with excess body weight (PR = 1·30; 95 % CI 1·18, 1·43), central obesity both by waist circumference (PR = 1·27; 95 % CI 1·00, 1·61) and by waist:height ratio (PR = 1·32; 95 % CI 1·13, 1·54) and high fasting glucose levels (PR = 1·54; 95 % CI 1·09, 2·18), fasting insulin (PR = 1·64; 95 % CI 1·21, 2·22), glycated Hb (PR = 1·16; 95 % CI 1·03, 1·31) and total cholesterol (PR = 1·14; 95 % CI 1·02, 1·27). Skipping breakfast was associated with cardiometabolic risk factors in adolescence. In this context, the school environment is an ideal space to promote healthy eating habits, favouring the implementation of food and nutrition education activities to make adolescents aware of the importance of consuming breakfast daily.

Poor sleep quality, excessive daytime sleepiness and association with mental health in college students.

AIM: To estimate the prevalence of poor sleep quality and excessive daytime sleepiness (EDS) among college students and to analyse their association with aspects of mental health. SUBJECTS AND METHODS: A cross-sectional study carried out with 1113 college students, enrolled in full-time courses at a public university in the Mid-West region of Brazil. Data were collected through a self-administered questionnaire with questions about demographics, socioeconomics, mental health, sleep quality, and EDS. Measurements of weight and height were taken to assess weight status using the body mass index. Multivariate logistic regression models were used to estimate the associations between perceived stress (classified as light, moderate, and high) and presence of depressive symptoms with poor sleep quality and presence of EDS. RESULTS: High prevalence of poor sleep quality (65.5%) and EDS (55%) was observed. In the adjusted models, poor sleep quality was significantly associated with moderate and high perceived stress and presence of depressive symptoms. For EDS, there was also a significant association with moderate and high perceived stress and presence of depressive symptoms. CONCLUSIONS: High prevalence of poor sleep quality and EDS was found among college students. Perceived stress and presence of depressive symptoms were significantly associated with both evaluated outcomes.

Prevalence of disordered eating behaviors and associated factors in Brazilian university students.

BACKGROUND: University students may be a vulnerable group to adopt unhealthy behaviors, including changes in eating behavior. Assessment of factors associated with the prevalence of disordered eating behaviors in this population may facilitate the early identification of their predictors, thus allowing fast interventions. AIM: To analyze the prevalence of disordered eating behaviors (DEB) and associated factors in Brazilian university students. METHODS: Cross-sectional study of male and female students aged 16-25 years, enrolled in full-time degree program at a public university in the mid-west of Brazil. Disordered eating behaviors in the last three months (binge eating, purging, and food restriction), through an adapted version of the instrument developed by Hay, was evaluated and the association with demographic and socioeconomic characteristics, including lifestyle, body image, perceived stress, depressive symptoms, and excess weight, was analyzed. A hierarchical analysis model was performed to determine the relative importance of factors on the prevalence of DEB. RESULTS: A total of 1608 university students were evaluated (50.7% male). Prevalence of DEB was 4.4% for binge eating, 2.5% for purging and 9.1% for food restriction, all of which were higher among women (7.0%, 4.4%, and 13.5%) compared with men (1.8%, 0,6%, and 4.9%, respectively). The factors that remained significantly associated with these behaviors were female sex, smoking, consumption of alcoholic beverages, dissatisfaction with body image, excess weight, high perceived stress, and presence of self-reported depressive symptoms. CONCLUSION: Factors associated with DEB signal that intervention is required to create synergy between individual and population-level interventions in lifestyle behaviors.

Socio-economic and demographic characteristics associated with risk behaviour patterns for chronic non-communicable diseases in Brazil: data from the National Health Survey, 2013.

OBJECTIVE: To identify risk behaviour patterns for chronic non-communicable diseases (NCD) in the Brazilian population and to investigate associated socio-economic and demographic factors. DESIGN: Factor analysis was used to identify patterns considering the following risk behaviours: consumption of soft drinks/artificial juice, sweet foods, red meat with apparent fat, chicken skin; inadequate consumption of fruits and vegetables; alcohol abuse; smoking; absence of physical activity during leisure time; and time spent watching television. The χ 2 test was used to compare ratios. All analyses accounted for weighting factors and the study's complex sampling design effect. The socio-economic and demographic variables evaluated were gender, age, schooling level and macro region of residence. SETTING: National Health Survey, a household survey with national representation, conducted in 2013 in Brazil.ParticipantsIndividuals (n 60202) aged 18 years or over. RESULTS: Four risk behaviour patterns were identified: 'Physical inactivity in leisure time and Inadequate consumption of fruits and vegetables', 'Saturated fat', 'Alcohol and Smoking' and 'Sedentary behaviour and Sugar', explaining 52·01 % of the total variance. Overall, greater adherence to 'Saturated fat' and 'Alcohol and Smoking' patterns was observed among men and those with lower education level. The 'Sedentary behaviour and Sugar' and 'Physical inactivity in leisure time and Inadequate consumption of fruits and vegetables' patterns had greater adherence among younger individuals, and the first was associated with higher education whereas the second with less education among individuals residing in the North and Northeast regions. CONCLUSIONS: Risk behaviour patterns for NCD were heterogeneous, reflecting the socio-economic and demographic differences in Brazil.

Cut-off points of anthropometric markers associated with hypertension in the Brazilian population: National Health Survey, 2013.

OBJECTIVE: To identify cut-off points for waist circumference (WC), waist-to-height ratio (WHtR) and BMI associated with hypertension in the Brazilian adult and elderly population. DESIGN: Cross-sectional study. The receiver-operating characteristic (ROC) curve was used to determine the cut-off points of WC, WHtR and BMI in the prediction of hypertension. Those who had systolic blood pressure ≥140 mmHg and/or diastolic blood pressure ≥90 mmHg and those who reported use of antihypertensive medication were considered hypertensive. SETTING: Brazil.ParticipantsParticipants from the National Health Survey, the Brazilian household-based survey conducted in 2013, of both sexes and age ≥20 years. RESULTS: Cut-off points for WC and WHtR increased with age in both sexes. WC cut-off limits ranged between 88·0 and 95·9 cm in men and between 85·0 and 93·2 cm in women. For WHtR, cut-off scores ranged from 0·51 to 0·58 for men and from 0·53 to 0·61 for women. Additionally, the area under the ROC curve (AUC) for all age and sex groups was greater than 0·60 while the lower limit of the AUC 95 % CI for both WC and WHtR was not less than 0·50. The performance of BMI was similar to that of indicators of fat location. CONCLUSIONS: All analysed anthropometric indicators had similar performance in identifying hypertension in the Brazilian population.

Effects of social mobility from childhood to adolescence on BMI.

OBJECTIVE: Little is known about the contribution of childhood socio-economic position (SEP) and social mobility to weight change. The present study evaluated the effect of family SEP during the pre-school years and social mobility on BMI between birth and adolescence. DESIGN: Longitudinal. The SEP of each child's family was classified according to an asset-based wealth index as low, medium or high. Four different categories of childhood-adolescence SEP groups were created in order to examine social mobility: low-medium/high, medium-medium, medium-high and high-high/medium. For each of these categories, BMI was tracked from birth to adolescence. Linear mixed-effects models were used to analyse the data. SETTING: Cuiabá-MT, Brazil. SUBJECTS: A population-based cohort of children born between 1994 and 1999 was assessed between 1999 and 2000, and again between 2009 and 2011. RESULTS: A total of 1716 adolescents were followed from childhood to adolescence (71·4 % of baseline). The prevalence of overweight/obesity was 20·4 % in childhood and 27·7 % in adolescence. A higher SEP in childhood was associated with a greater prevalence of overweight in adolescence. Expressive upward social mobility occurred, mainly in the lowest SEP group. There was a greater rate of change in BMI between birth and adolescence among children with a higher SEP in childhood and children who remained in the higher SEP from childhood to adolescence. CONCLUSION: Individuals from a higher SEP in childhood and those who remained in the higher social classes showed greater rate of change in BMI. Thus, initial SEP was the major determinant of changes in BMI.

Effect of tobacco smoke exposure during pregnancy and preschool age on growth from birth to adolescence: a cohort study.

BACKGROUND: There is strong evidence of an association between maternal smoking during pregnancy and restriction of intrauterine growth, but the effects of this exposure on postnatal linear growth are not well defined. Furthermore, few studies have investigated the role of tobacco smoke exposure also after pregnancy on linear growth until adolescence. In this study we investigated the effect of maternal smoking exposure during pregnancy and preschool age on linear growth from birth to adolescence. METHODS: We evaluated a cohort of children born between 1994 and 1999 in Cuiabá, Brazil, who attended primary health clinics for vaccination between the years 1999 and 2000 (at preschool age) and followed-up after approximately ten years. Individuals were located in public and private schools throughout the country using the national school census. Height/length was measured, and length at birth was collected at maternity departments. Stature in childhood and adolescence was assessed using the height-for-age index sex-specific expressed as z-score from curves published by the World Health Organization. Linear mixed effects models were used to estimate the association between exposure to maternal smoking, during pregnancy and preschool age, and height of children assessed at birth, preschool and school age, adjusted for age of the children. RESULTS: We evaluated 2405 children in 1999-2000, length at birth was obtained from 2394 (99.5%), and 1716 at follow-up (71.4% of baseline), 50.7% of the adolescents were male. The z-score of height-for-age was lower among adolescents exposed to maternal smoking both during pregnancy and childhood (p < 0.01). Adjusting for age, sex, maternal height, maternal schooling, socioeconomic position at preschool age, and breastfeeding, children exposed to maternal smoking both during pregnancy and preschool age showed persistent lower height-for-age since birth to adolescence (coefficient: -0.32, p < 0.001) compared to non-exposed. Paternal smoking at preschool age was not associated with growth after adjustment for confounders. CONCLUSION: Exposure to maternal smoking not only during pregnancy, but also at early childhood, showed long-term negative effect on height of children until adolescence.

Lifestyle-related behaviors and depressive symptoms in college students.

This study sought to examine the association between lifestyle-related behaviors and depressive symptoms among college students. This cross-sectional study analyzed baseline data of a dynamic-cohort study from a public university in Central-Western Brazil, in all 21 undergraduate full-time courses. Students up to 25 years old who were enrolled for the first time in a university were included in the study, except pregnant and/or nursing women. All students who met the eligibility criteria were invited to participate in the study. From a total of 1,212 eligible students, 1,038 were included (85.6%). All participants answered a self-administered questionnaire on smoking, alcohol consumption, screen time, sleep duration, and meal patterns. Depressive symptoms were assessed using the Patient Health Questionnaire-9 (PHQ-9). Multivariate Poisson regression models stratified by sex were used to estimate the associations. Depressive symptoms was observed in 31.6% (males 23.6%; females 39.9%; p-value chi-square test = 0.01) of the students. Smoking, drinking spirits, and having irregular meal habits were directly associated with depressive symptoms in both males and females. The co-occurrence of two risk behaviors (men: aPR = 2.23, 95%CI: 1.25; 3.99; women: aPR = 1.54, 95%CI: 1.03; 2.30) and three or more risk behaviors (men: aPR = 3.42, 95%CI: 1.90; 6.16; women: aPR = 2.09, 95%CI: 1.39; 3.15) increased the occurrence of depressive symptoms among the students. Lifestyle-related unhealthy behaviors were associated with an increased occurrence of depressive symptoms among college students. These findings suggest the need of interventions encouraging changes in lifestyle to promote mental health and to improve the quality of life in this group.

[Sleep-related problems and associated factors among the Brazilian population: National Health Survey, 2013]. / Problemas com o sono e fatores associados na população brasileira: Pesquisa Nacional de Saúde, 2013.

The scope of this study was to estimate the frequency of sleep-related problems and associated factors. It was a study based on data from the National Health Survey conducted in Brazil in 2013. Sleep-related problems were assessed with the question "How often have you had sleep problems in the last two weeks, such as difficulty falling asleep, waking up frequently during the night or sleeping more than usual?" The answers were grouped into: none of the days, less than half of the days and more than half of the days. Of the individuals evaluated, 71.1% reported having no problems with sleep on any day, 14.0% on at least half of the days and 14.9% on more than half of the days. The highest frequencies of sleep-related problems were reported by women and more advanced age. For men and women, smoking, alcohol abuse, physical inactivity, sedentary behavior, and high blood pressure were significantly associated with the frequency of sleep problems on more than half of the days, and also excess weight for women. Thus, the frequency of sleep-related problems in the Brazilian population was high. Women, older individuals with lifestyle-related risk behaviors, high blood pressure, and overweight were the highest risk subgroups.

O objetivo deste estudo foi estimar a frequência de problemas com o sono e os fatores associados, analisando dados da Pesquisa Nacional de Saúde, realizado em 2013 no Brasil. Os problemas com o sono foram avaliados com a pergunta "Nas duas últimas semanas, com que frequência o(a) sr(a) teve problemas no sono, como dificuldade para adormecer, acordar frequentemente à noite ou dormir mais do que de costume?", as respostas foram agrupadas em: nenhum dia, menos da metade dos dias e mais da metade dos dias. Dos indivíduos avaliados, 71,1% relataram não ter problemas com o sono em nenhum dia, 14,0% em pelo menos metade dos dias e 14,9% em mais da metade dos dias. As maiores frequências de problemas com o sono foram relatadas pelas mulheres e com o aumento da idade. Para homens e mulheres, tabagismo, consumo de bebidas alcoólicas, inatividade física, comportamento sedentário e hipertensão arterial apresentaram associação significativa com a frequência de problemas com o sono em mais da metade dos dias, e o excesso de peso para as mulheres. Assim, foi elevada a frequência de problemas com o sono na população brasileira. Mulheres, indivíduos mais velhos, com comportamentos de risco relacionados ao estilo de vida, hipertensão arterial e excesso de peso corporal foram os subgrupos em maior risco.

Breakfast skipping and cardiometabolic risk factors in adolescents: Systematic review.

OBJECTIVE: To systematically review the results of the association between breakfast skipping and cardiometabolic risk factors in adolescents. METHODS: The articles were searched in May 2020 from PubMed, Virtual Health Library, Scopus, Web of Science and Scientific Electronic Library Online (SciELO). The review included observational studies conducted with adolescents (10-19 years old), which estimated the association of breakfast skipping with at least one outcome (markers of body adiposity, blood pressure, serum lipid and glucose levels). Regarding the risk of bias, the articles were evaluated using the Research Triangle Institute (RTI) Item Bank on bias risk and accuracy of observational studies. The quality of the evidence was assessed by the Grade rating. RESULTS: A total of 43 articles involving 192,262 participants met the inclusion criteria and were considered in this review. The prevalence of breakfast skipping ranged from 0.7% to 94% and 60.5% of studies were classified with low risk of bias. The significant association between breakfast skipping and cardiometabolic risk factors was found in twenty-nine cross-sectional articles (n = 106,031) and four longitudinal articles (n = 5,162) for excess adiposity, in three articles (n = 8,511) for high total cholesterol levels, low-density lipoprotein and triglycerides, and in three studies (n = 6,303) for high blood pressure levels. However, there was no significant association between breakfast skipping and glycemic profile. According to the Grade rating, all the associations had low quality of evidence. CONCLUSION: The results of this review suggest that breakfast skipping is associated with cardiometabolic risk factors in adolescents aged 10 to 19 years. However, considering the low quality of the evidence, the present results should be interpreted carefully. In addition, our findings highlight the importance of standardizing the definition of breakfast skipping and that more prospective studies are needed to determine how skipping breakfast can affect cardiometabolic risk factors in the long time.

Dental caries and associated factors at age 12 in the Brazilian. / Cárie dentária e fatores associados aos 12 anos na Região Centro-Oeste do Brasil em 2010: um estudo transversal.

This study aims to analyze the index of decayed, missing and filled teeth (DMFT) at age 12 in the Midwest Region and to identify associated factors, according to the National Oral Health Survey "SB Brasil 2010". This is a cross-sectional population-based study from the SB Brasil 2010 database, conducted in the capitals of Mato Grosso, Mato Grosso do Sul, Goiás, Federal District and a sample of municipalities in the region. Data were analyzed by the chi-square test and prevalence ratios with their respective confidence intervals, at a significance level of 5%. The Poisson regression was used in the multiple analysis to study the association between the outcome variable and the explanatory variables. The independent variables that were associated with the DMFT were: the state of residence in Mato Grosso, Goiás and Mato Grosso do Sul; the per capita income ≤ R$500.00; difficulties eating and sleeping, and reason for the visit was Pain/Extraction/Treatment/Other. Mean DMFT was 2.14 and the prevalence of dental caries affected 41% of adolescents.

O objetivo do estudo é analisar o índice de dentes cariados, perdidos e obturados (CPO-D) na idade de 12 anos da Região Centro-Oeste e identificar fatores associados, segundo a Pesquisa Nacional de Saúde Bucal, o SB Brasil 2010. É um estudo transversal de base populacional do banco de dados do SB Brasil 2010, realizado nas capitais de Mato Grosso, Mato Grosso do Sul, Goiás, Distrito Federal e uma amostra de municípios da região. Os dados foram analisados pelo teste de qui-quadrado e razões de prevalências com seus respectivos intervalos de confiança, a um nível de significância de 0,05. A regressão de Poisson foi empregada na análise múltipla para analisar a associação entre a variável desfecho e as variáveis explicativas. As variáveis independentes que se mostraram associadas ao CPO-D foram: o estado de moradia em Mato Grosso, Goiás e Mato Grosso do Sul; a renda per capita ≤ R$500,00; dificuldade para comer e dormir, e o motivo da consulta por Dor/Extração/Tratamento/Outros. A média do índice CPO-D foi de 2,14 e a prevalência da cárie dental foi de 41% dos adolescentes.

Food (in) security and nutritional dietary quality In Brazil / Insegurança alimentar e nutricional e qualidade da dieta no Brasil

ABSTRACT Objective Verify association between the perception of food insecurity and the diet quality of the Brazilian population, applying The Brazilian Food Insecurity Scale and the Brazilian Healthy Eating Index Revised. Methods Cross-sectional study using data from the Householder Budget Survey collected in 2017/18 with two 24-hour recalls. A multinomial regression model was used with Odds Ratio and a 95% confidence interval, with the final model being the insertion of variables according to the theoretical model of hierarchy adopted. Results A total of 57,920 households were analyzed, and of these, 39.22% lived with some degree of Food Insecurity. There was a significant difference between female heads of the household, mixed race and black race, households with adults and children and living in rural regions as the three levels of AI [Food insecure] (p=<0.001), with a greater chance of food insecurity in these households. The average Brazilian Healthy Eating Index Revised for the 46,152 individuals was 54.23 points for those who were not food insecure, and 54.11 points for those who experienced severe food insecurity. Conclusion It is concluded that there is an association between the perception of food insecurity and the nutritional quality of the diet of the Brazilian population, which can lead to malnutrition and obesity.

RESUMO Objetivo Verificar a associação entre a percepção de insegurança alimentar e a qualidade da dieta da população brasileira, aplicando a Escala Brasileira de Insegurança Alimentar e o Índice de Qualidade da Dieta Revisado a partir de dois recordatórios de 24 horas. Métodos Estudo transversal que utilizou dados da Pesquisa de Orçamentos Familiares de 2017-2018. Utilizou-se o modelo de regressão multinomial com Odds Ratio e intervalo de confiança de 95%, sendo o modelo final com inserção das variáveis de acordo com o modelo teórico de hierarquia adotado. Resultados Foram analisados 57.920 domicílios, e destes, 39,22% viviam com algum grau de Insegurança Alimentar. Verificou-se diferença significativa entre pessoas do sexo feminino como chefe do domicílio, raça pardo e preto, domicílios com adultos e crianças e residir na região rural como os três níveis de Insegurança Alimentar (p=<0,001), havendo uma maior chance de insegurança alimentar nesses domicílios. A média do Índice de Qualidade da Dieta Revisado para os 46.152 indivíduos foi de 54.23 pontos para os que não apresentavam insegurança alimentar, e 54.11 pontos para aqueles que vivenciaram insegurança alimentar grave. Conclusão Conclui-se que existe associação entre a percepção de insegurança alimentar e a qualidade nutricional da dieta da população brasileira, o que pode levar à desnutrição e obesidade.

Longitudinal Study on the Lifestyle and Health of University Students (ELESEU): design, methodological procedures, and preliminary results.

Admission to a university may cause significant changes in the pattern of exposure to health risks. The aim of this paper is to describe the study design and methodological procedures adopted in the Longitudinal Study on the Lifestyle and Health of University Students (ELESEU). This study examines a dynamic cohort of full-time students at a public university in the State of Mato Grosso, Brazil. This research, which started in 2015, will have four years of follow-up and is scheduled to end in 2018. A self-administered questionnaire is applied, containing questions regarding demographic and socioeconomic characteristics, and information on health conditions and risk factors such as lifestyle, perceived stress, symptoms of depression, body image, risk behaviors for eating disorders, self-assessment of health and diet quality, and other issues related to nutrition and health. Anthropometric and blood pressure measurements are also recorded. Two 24-hour dietary recalls and cholesterol, triglycerides, and glucose capillary measurements are collected in 50% of the students. In 2015, 495 participants (82.6% of the eligible students) were assessed in the baseline study. Of these, 348 (70.3%) were followed up in 2016. In 2016, 566 participants were included in the cohort (81% of the eligible students). This study will help to identify the factors that might influence changes in the nutritional, health, and metabolic status of young adults during college life.

Consumption of free sugars and dietary sources in the diet of university students according to socioeconomic and lifestyle factors / Consumo de açúcar livre e fontes dietéticas na dieta de estudantes universitários segundo fatores socioeconômicos e de estilo de vida

ABSTRACT Objective To evaluate the consumption of free sugars and associated factors in the diet of university students entering full-time courses at a public university in Mato Grosso. Methods Cross-sectional study with students aged 16 to 26 years in the first semester of 2016, 2017, and 2018. Average sugar consumption was estimated using a 24-hour diet recall, evaluating the percentage of free sugars in total energy intake and the prevalence of consumption greater than 10.0% of total energy intake, according to socioeconomic and lifestyle variables, stratified by sex, and the foods that most contributed to its consumption. Results A total of 1,063 students were evaluated, the percentage of free sugars in the students' diet was on average 14.3% among men and 15.4% among women, with the prevalence of consumption above 10.0% also being higher among women (72.6 vs. 66.6%). There was a direct relationship between the participation of free sugars in the highest tertiles of energy intake, and the main food groups sources of sugar were desserts, juices, soft drinks, and coffee. There was a significant association between courses outside the health sciences, tobacco use, and unsatisfactory meal consumption profile with higher consumption of free sugars among women. Among men, sugar consumption was higher among those who were not overweight compared to those who were overweight. Conclusion The consumption of free sugars is high among university students, being associated with higher energy consumption, especially for sweetened beverages.

RESUMO Objetivo Avaliar o consumo de açúcar livre e os fatores associados na alimentação de universitários ingressantes em cursos de período integral em uma universidade pública de Mato Grosso. Métodos Estudo transversal com estudantes de 16 a 26 anos de idade no primeiro semestre de 2016, 2017 e 2018 (n=1.063). O consumo médio de açúcar foi estimado por meio de recordatório de 24 horas, sendo avaliada a participação do açúcar livre na ingestão energética total e a prevalência de participação do consumo superior a 10,0% da ingestão energética, segundo variáveis socioeconômicas, de estilo de vida e fatores dietéticos, , estratificadas por sexo. Resultados A participação do açúcar livre na dieta foi, em média, de 14,3% entre os homens e 15,4% entre as mulheres, sendo a prevalência de consumo acima de 10,0% também maior entre as mulheres (72,6 vs. 66,6%). Foi maior a participação do açúcar livre nos tercis mais elevados de ingestão energética, sendo verificado que os principais grupos de alimentos fontes foram sobremesas, sucos, refrigerantes e café. Entre as mulheres, verificou-se maior consumo de açúcar livre entre aquelas que faziam uso de tabaco e que apresentavam perfil de consumo de refeições insatisfatório. Por outro lado, menor consumo de açúcar livre foi observado entre as estudantes da área da saúde. Entre os homens, o consumo de açúcar livre foi maior entre aqueles sem excesso de peso, comparados aos com excesso. Conclusão O consumo de açúcar livre foi elevado entre estudantes universitários, sendo maior entre os estudantes com maior consumo energético. Verificou-se que as bebidas adoçadas estiveram entre as principais fontes.

Self-reported weight and height are valid measures to determine weight status: results from the Brazilian National Health Survey (PNS 2013).

Self-reported measures have been used to obtain weight and height information in some epidemiological surveys. The validation of such information is necessary to guarantee data quality. This study assessed the validity of self-reported weight and height to determine weight status. Data were obtained in the Brazilian National Health Survey, a Brazilian household-based nationwide survey carried out in 2013. In this survey, 40,366 individuals (aged ≥ 18 years) provided self-reported and measured information about weight and height. Student's paired t-test was used to verify the differences between self-reported and measured data. The agreement between measurements was obtained using the intraclass correlation coefficient (ICC) and Bland-Altman method. To evaluate variations in weight status categorizations, the weighted kappa coefficient and exact agreement were used. Sensitivity and specificity were estimated for the self-reported information to classify overweight and obese individuals. There was high agreement between self-reported and measured weight, height, and body mass index (ICC > 0.88). The mean agreements estimated by the Bland-Altman method were 99.6% for weight and 100.6% for height. The weighted kappa coefficient showed substantial agreement among the weight status categories (> 0.66); the exact agreement was 77%. Sensibility and specificity for overweight (83% and 87.5%, respectively) and obesity (73.4% and 96.7%, respectively) were considered high for the sociodemographic characteristics evaluated. According to our results, self-reported measurements of weight and height can be used cautiously as valid alternatives to determine weight status.

Effects of socioeconomic position and social mobility on linear growth from early childhood until adolescence.

OBJECTIVE: To assess the effect of socioeconomic position (SEP) in childhood and social mobility on linear growth through adolescence in a population-based cohort. METHODS: Children born in Cuiabá-MT, central-western Brazil, were evaluated during 1994 - 1999. They were first assessed during 1999 - 2000 (0 - 5 years) and again during 2009 - 2011 (10 - 17 years), and their height-for-age was evaluated during these two periods.Awealth index was used to classify the SEP of each child's family as low, medium, or high. Social mobility was categorized as upward mobility or no upward mobility. Linear mixed models were used. RESULTS: We evaluated 1,716 children (71.4% of baseline) after 10 years, and 60.6% of the families showed upward mobility, with a higher percentage among the lowest economic classes. A higher height-for-age was also observed among those from families with a high SEP both in childhood (low SEP= -0.35 z-score; high SEP= 0.15 z-score, p < 0.01) and adolescence (low SEP= -0.01 z-score; high SEP= 0.45 z-score, p < 0.01), whereas upward mobility did not affect their linear growth. CONCLUSION: Expressive social mobility was observed, but SEP in childhood and social mobility did not greatly influence linear growth through childhood in this central-western Brazilian cohort.