Bárbara Hatzlhoffer Lourenço

Underreporting of energy intake in Brazilian women varies according to dietary assessment: a cross-sectional study using doubly labeled water.

OBJECTIVE Underreporting of energy intake is prevalent in food surveys, but there is controversy about which dietary assessment method provides greater underreporting rates. Our objective is to compare validity of self-reported energy intake obtained by three dietary assessment methods with total energy expenditure (TEE) obtained by doubly labeled water (DLW) among Brazilian women. DESIGN We used a cross-sectional study. SUBJECTS/SETTING Sixty-five females aged 18 to 57 years (28 normal-weight, 10 overweight, and 27 obese) were recruited from two universities to participate. MAIN OUTCOME MEASURES TEE determined by DLW, energy intake estimated by three 24-hour recalls, 3-day food record, and a food frequency questionnaire (FFQ). STATISTICAL ANALYSES PERFORMED Regression and analysis of variance with repeated measures compared TEE and energy intake values, and energy intake-to-TEE ratios and energy intake-TEE values between dietary assessment methods. Bland and Altman plots were provided for each method. chi(2) test compared proportion of underreporters between the methods. RESULTS Mean TEE was 2,622 kcal (standard deviation [SD]=490 kcal), while mean energy intake was 2,078 kcal (SD=430 kcal) for the diet recalls; 2,044 kcal (SD=479 kcal) for the food record and 1,984 kcal (SD=832 kcal) for the FFQ (all energy intake values significantly differed from TEE; P<0.0001). Bland and Altman plots indicated great dispersion, negative mean differences between measurements, and wide limits of agreement. Obese subjects underreported more than normal-weight subjects in the diet recalls and in the food records, but not in the FFQ. Years of education, income and ethnicity were associated with reporting accuracy. CONCLUSIONS The FFQ produced greater under- and overestimation of energy intake. Underreporting of energy intake is a serious and prevalent error in dietary self-reports provided by Brazilian women, as has been described in studies conducted in developed countries.

Insatisfação com a imagem corporal em universitárias brasileiras

Body image dissatisfaction is evaluated according to the difference between the real figure and idealized figure, and could influence eating behaviors. OBJECTIVE: To evaluate body dissatisfaction among female university students from the five regions of Brazil and possible associations and correlations with age, nutritional status, individual income and parental education. METHODS: 2,402 students answered the Stunkards Body Image Scale and regions were compared by variance analysis, and correlations among variables with Pearsons and Spearmans coefficients. RESULTS: 64.4% desired a figure smaller than their actual one, and even the normal weight range students chose ideal and healthy smaller figures. In North region the ideal and healthy patterns were smaller and in the Central West bigger. CONCLUSION: Occurrence of body dissatisfaction was common among Brazilian university students and some regional and socio demographic differences must be considered.

Estado nutricional e adequação da ingestão de energia e nutrientes em pacientes com insuficiência cardíaca

SUMMARY: Increased knowledge about nutritional status and energy and nutrient intakes is required to improve the treatment of patients with heart failure (HF). OBJECTIVES: To verify the nutritional status and evaluate the adequacy of energy, macronutrient and micronutrient intakes in patients with HF in outpatient clinical settings. METHODS: We collected anthropometric and habitual dietary intake data of 125 patients (72% men, 52.1 ± 9.8 years, BMI 26.9 ± 4.4 kg/m2). Anthropometric variables were compared between genders, and the adequacy of energy and nutrient intakes was analyzed according to current recommendations. RESULTS: Muscle depletion or risk of depletion was present in 38.4% of patients (association with male gender, p <0.0001). In 69.6% of cases the mean energy intake was lower than the one required (p <0.0001). Among the micronutrients evaluated in this study, there was an important prevalence of inadequacy in magnesium, zinc, iron and thiamine intakes, and most patients had calcium and potassium intakes below the adequate levels, and sodium intake above the adequate levels. CONCLUSIONS: Outpatients with HF showed muscle depletion, and inadequate energy and nutrient intakes. There was no significant association between habitual dietary energy intake and nutritional status. Multidisciplinary care should be encouraged to better assess the general condition of these patients.SUMMARY Increased knowledge about nutritional status and energy and nutrient intakes is required to improve the treatment of patients with heart failure (HF). OBJECTIVES To verify the nutritional status and evaluate the adequacy of energy, macronutrient and micronutrient intakes in patients with HF in outpatient clinical settings. METHODS We collected anthropometric and habitual dietary intake data of 125 patients (72% men, 52.1 +/- 9.8 years, BMI 26.9 +/- 4.4 kg/m2). Anthropometric variables were compared between genders, and the adequacy of energy and nutrient intakes was analyzed according to current recommendations. RESULTS Muscle depletion or risk of depletion was present in 38.4% of patients (association with male gender, p <0.0001). In 69.6% of cases the mean energy intake was lower than the one required (p <0.0001). Among the micronutrients evaluated in this study, there was an important prevalence of inadequacy in magnesium, zinc, iron and thiamine intakes, and most patients had calcium and potassium intakes below the adequate levels, and sodium intake above the adequate levels. CONCLUSIONS Outpatients with HF showed muscle depletion, and inadequate energy and nutrient intakes. There was no significant association between habitual dietary energy intake and nutritional status. Multidisciplinary care should be encouraged to better assess the general condition of these patients.

FTO GENOTYPE, VITAMIN D STATUS AND WEIGHT GAIN DURING CHILDHOOD

Previous evidence suggests that variants in the fat mass and obesity-associated gene (FTO) affect adiposity in an age-dependent fashion in children, and nutritional factors may modify genotype effects. We assessed the effect of FTO rs9939609 on BMI and BMI-for-age Z score changes during childhood in a population-based longitudinal study in the Brazilian Amazon and investigated whether these effects were modified by vitamin D status, an important nutritional factor related to adiposity. At baseline, 1,088 children aged <10 years had complete genotypic and anthropometric data; 796 were followed up over a median 4.6 years. Baseline vitamin D insufficiency was defined as <75 nmol/L. We observed a 0.07 kg/m2/year increase in BMI and a 0.03 Z/year increase in BMI-for-age Z score per rs9939609 risk allele over follow-up (P = 0.01). Vitamin D status significantly modified FTO effects (P for interaction = 0.02). The rs9939609 risk allele was associated with a 0.05 Z/year increase in BMI-for-age Z score among vitamin D–insufficient children (P = 0.003), while no significant genetic effects were observed among vitamin D–sufficient children. Our data suggest that FTO rs9939609 affects child weight gain, and genotype effects are more pronounced among children with insufficient vitamin D levels.

Nutritional status and adequacy of energy and nutrient intakes among heart failure patients

SUMMARY: Increased knowledge about nutritional status and energy and nutrient intakes is required to improve the treatment of patients with heart failure (HF). OBJECTIVES: To verify the nutritional status and evaluate the adequacy of energy, macronutrient and micronutrient intakes in patients with HF in outpatient clinical settings. METHODS: We collected anthropometric and habitual dietary intake data of 125 patients (72% men, 52.1 ± 9.8 years, BMI 26.9 ± 4.4 kg/m2). Anthropometric variables were compared between genders, and the adequacy of energy and nutrient intakes was analyzed according to current recommendations. RESULTS: Muscle depletion or risk of depletion was present in 38.4% of patients (association with male gender, p <0.0001). In 69.6% of cases the mean energy intake was lower than the one required (p <0.0001). Among the micronutrients evaluated in this study, there was an important prevalence of inadequacy in magnesium, zinc, iron and thiamine intakes, and most patients had calcium and potassium intakes below the adequate levels, and sodium intake above the adequate levels. CONCLUSIONS: Outpatients with HF showed muscle depletion, and inadequate energy and nutrient intakes. There was no significant association between habitual dietary energy intake and nutritional status. Multidisciplinary care should be encouraged to better assess the general condition of these patients.SUMMARY Increased knowledge about nutritional status and energy and nutrient intakes is required to improve the treatment of patients with heart failure (HF). OBJECTIVES To verify the nutritional status and evaluate the adequacy of energy, macronutrient and micronutrient intakes in patients with HF in outpatient clinical settings. METHODS We collected anthropometric and habitual dietary intake data of 125 patients (72% men, 52.1 +/- 9.8 years, BMI 26.9 +/- 4.4 kg/m2). Anthropometric variables were compared between genders, and the adequacy of energy and nutrient intakes was analyzed according to current recommendations. RESULTS Muscle depletion or risk of depletion was present in 38.4% of patients (association with male gender, p <0.0001). In 69.6% of cases the mean energy intake was lower than the one required (p <0.0001). Among the micronutrients evaluated in this study, there was an important prevalence of inadequacy in magnesium, zinc, iron and thiamine intakes, and most patients had calcium and potassium intakes below the adequate levels, and sodium intake above the adequate levels. CONCLUSIONS Outpatients with HF showed muscle depletion, and inadequate energy and nutrient intakes. There was no significant association between habitual dietary energy intake and nutritional status. Multidisciplinary care should be encouraged to better assess the general condition of these patients.

Binge eating symptoms, diet composition and metabolic characteristics of obese children and adolescents.

This study aimed to determine the occurrence of symptoms of binge eating (BE) among children and adolescents seeking treatment for their obesity, as well as to evaluate their diet composition and metabolic characteristics. The Binge Eating Scale (BES) was answered by 128 children and adolescents (10.77+/-2.04 years, BMI 29.15+/-4.98 kg/m2, BMI Z score 2.28+/-0.46, 53.91% pubescent), who were classified into two subgroups--binge eaters (score greater than or equal to 18 points) and non-binge eaters (score lower than 18 points). Anthropometric data, body composition and Tanner stages were collected and dietary evaluation conducted. Blood pressure was determined, and glucose, lipid profile and insulin assays were performed. Insulin resistance was determined using HOMA-IR. BE symptoms were present in 39.06% of patients. Carbohydrate intake in diet composition was significantly higher among binge eaters. Children with BE did not demonstrate significant dissimilar metabolic characteristics when compared to their counterparts without BE. Therefore, BE seems to be a prevalent problem among children and adolescents seeking help for their obesity. When associated with obesity, this eating behaviour can influence macronutrient consumption through increased carbohydrate intake. Further research would be valuable to verify the reproducibility of these findings.

Influence of early life factors on body mass index trajectory during childhood: a population-based longitudinal analysis in the Western Brazilian Amazon

Low- to middle-income countries may experience the occurrence of a dual burden of under and overnutrition. To better understand the overall progression of body mass index (BMI) during childhood, we estimated average BMI-for-age z-score (BAZ) growth curves in a population-based longitudinal study of 255 children living in the Brazilian Amazon. Children were aged 0.1-5.5 years at recruitment (2003). We collected data on socio-economic and maternal characteristics, childrens birthweight and infant feeding practices. Child anthropometric measurements were taken in 2003, 2007 and 2009. BAZ differences among categories of exposure variables were calculated at 6 and 12 months, and 2, 7 and 10 years. At baseline, the mean (standard deviation) age was 2.6 (1.4) years; 12.9% were overweight and 3.9% thin. After adjustment, mean BAZ estimates were mostly negative. Boys were close to the median value for BAZ until 12 months, whereas girls were below the median (P=0.05). Children from households above the wealth median were 0.36 z- and 0.49 z-less underweight than poorer children at 7 and 10 years, respectively (P<0.01). Maternal BMI was positively associated with childrens BAZ since 12 months old; BAZ in children from overweight mothers was higher by 0.69 compared with their counterparts at 10 years (P<0.01). Birthweight was positively related to BAZ up until 2 years (P=0.01). Socio-economic background and maternal nutritional status are important predictors of BAZ throughout childhood. Although excessive weight gain is a public health concern, it is critical to restrict inequities, while promoting healthier growth in developing countries.

Determinants of linear growth from infancy to school-aged years: a population-based follow-up study in urban Amazonian children

BackgroundAlthough linear growth during childhood may be affected by early-life exposures, few studies have examined whether the effects of these exposures linger on during school age, particularly in low- and middle-income countries.MethodsWe conducted a population-based longitudinal study of 256 children living in the Brazilian Amazon, aged 0.1 y to 5.5 y in 2003. Data regarding socioeconomic and maternal characteristics, infant feeding practices, morbidities, and birth weight and length were collected at baseline of the study (2003). Child body length/height was measured at baseline and at follow-up visits (in 2007 and 2009). Restricted cubic splines were used to construct average height-for-age Z score (HAZ) growth curves, yielding estimated HAZ differences among exposure categories at ages 0.5 y, 1 y, 2 y, 5 y, 7 y, and 10 y.ResultsAt baseline, median age was 2.6 y (interquartile range, 1.4 y–3.8 y), and mean HAZ was −0.53 (standard deviation, 1.15); 10.2% of children were stunted. In multivariable analysis, children in households above the household wealth index median were 0.30 Z taller at age 5 y (P = 0.017), and children whose families owned land were 0.34 Z taller by age 10 y (P = 0.023), when compared with poorer children. Mothers in the highest tertile for height had children whose HAZ were significantly higher compared with those of children from mothers in the lowest height tertile at all ages. Birth weight and length were positively related to linear growth throughout childhood; by age 10 y, children weighing >3500 g at birth were 0.31 Z taller than those weighing 2501 g to 3500 g (P = 0.022) at birth, and children measuring ≥51 cm at birth were 0.51 Z taller than those measuring ≤48 cm (P = 0.005).ConclusionsResults suggest socioeconomic background is a potentially modifiable predictor of linear growth during the school-aged years. Maternal height and child’s anthropometric characteristics at birth are positively associated with HAZ up until child age 10 y.

Factors associated with stunting and overweight in Amazonian children: a population-based, cross-sectional study.

OBJECTIVE To examine the prevalence of stunting and overweight in children and identify demographic, socio-economic and maternal characteristics, as well as biochemical indicators, associated with these outcomes. DESIGN A population-based, cross-sectional study was performed. Data from structured questionnaires, anthropometric measurements, and blood and stool samples were used in Poisson regression models to estimate prevalence ratios (PR) according to a hierarchical conceptual framework. SETTING Acrelândia, western Brazilian Amazon. SUBJECTS Children (n 1139) aged <10 years. RESULTS Prevalence of stunting was 7·1 % (95 % CI 5·1, 9·6 %) and 3·7 % (95 % CI 2·4, 5·7 %) among children aged <5 years and ≥5 years, respectively; overweight was detected in 20·6 % (95 % CI 17·4, 24·2 %) and 9·4 % (95 % CI 7·2, 12·1 %) of children aged <5 years and ≥5 years, respectively. Among children <5 years of age, stunting was positively associated with the lowest maternal height tertile (PR = 3·09, 95 % CI 1·26, 7·63), low birth weight (PR = 2·70, 95 % CI 1·41, 5·19), diarrhoea for ≥3d (PR = 2·21, 95 % CI 1·03, 4·77) and geohelminth infections (PR = 2·53, 95 % CI 1·02, 6·13). Overweight in children <5 years of age was positively associated with caesarean delivery (PR = 1·45, 95 % CI 1·02, 2·06), birth weight ≥3500 g (PR = 1·82, 95 % CI 1·30, 2·55) and Fe deficiency (PR = 1·64, 95 % CI 1·07, 2·53). Among children aged ≥5 years, land or livestock ownership (PR = 1·85, 95 % CI 1·07, 3·22), maternal overweight (PR = 2·06, 95 % CI 1·23, 3·47), high C-reactive protein concentration (PR = 2·43, 95 % CI 1·26, 4·70), vitamin A deficiency (PR = 1·97, 95 % CI 1·13, 3·41) and high serum TAG concentration (PR = 2·16, 95 % CI 1·27, 3·68) were associated with overweight. CONCLUSIONS Overweight was more prevalent than stunting, being associated with higher household wealth, maternal overweight, caesarean delivery, high birth weight, micronutrient deficiencies and high TAG concentration. Improvements in maternal and child health care with sustainable access to healthy food are necessary to reduce short- and long-term health complications related to overweight in this population.

Disordered eating among Brazilian female college students

O estudo investigou fatores socioeconomicos e nutricionais associados ao comer transtornado em universitarias brasileiras (n = 2.489). Modelos de regressao de Poisson com variância robusta estimaram razoes de prevalencia de fatores associados ao comer transtornado - avaliado por questoes do Teste de Atitudes Alimentares e da Disordered Eating Attitude Scale. Encontrou-se que 40,7% faziam regime para emagrecer; 35,6% usavam dieta ou metodos compensatorios; 23,9% pulavam refeicoes e 12,6% ficavam a base de liquidos ou sem comer para emagrecer; e 3,3% vomitavam. Ajustado por idade e regiao, ficar sem comer ou so com liquidos e pular refeicoes associaram-se positivamente ao estado nutricional. Compensacao e regimes associaram-se positivamente a escolaridade do chefe de familia. O comer transtornado foi frequente, sendo que ficar sem comer e pular refeicoes foram mais prevalentes naquelas com sobrepeso/obesidade; e compensacao e regimes menos prevalentes naquelas com chefes de familia com menor escolaridade. Estrategias de prevencao e educacao alimentar sao necessarias para diminuir a frequencia destes comportamentos.This study aimed to investigate the socioeconomic and nutritional factors associated with disordered eating among Brazilian female college students (n = 2,489). Prevalence ratios of risk factors were calculated using Poisson regression models with robust variance based on responses to selected questions from the Eating Attitude Test and Disordered Eating Attitude Scale. It was found that 40.7% of students were dieting, 35.6% were using diet or compensatory methods, 23.9% skipping meals, 12.6% not eating or just drinking liquids, and 3.3%, vomiting to lose weight. A positive association was found between not eating or just drinking liquids and skipping meals and nutritional status after adjustment for age and region. A positive association was found between compensatory methods and dieting and education level of the head of the family. Disordered eating behaviors were frequent, and not eating and skipping meals were more prevalent among overweight/obese students; compensatory methods and dieting were less prevalent among students from families whose head had up to only four years of education. Prevention strategies and food education are necessary in order to decrease the prevalence of these behaviors.O objetivo do presente estudo foi avaliar o impacto do Programa Agua para Todos (PAT), implantado no Estado da Bahia, Brasil, por ampliar a cobertura do saneamento basico em areas de maior vulnerabilidade. Foram selecionados 224 municipios com informacoes vitais adequadas. Foi utilizado um desenho de estudo antes-e-depois controlado, efetuando uma analise de regressao multivariada para dados em painel com resposta binomial negativa a efeitos fixos do ano 2005 ate 2008. A cobertura do PAT, como variavel continua, esteve associada negativamente (p < 0,01) com a taxa de mortalidade em menores de cinco anos. Os municipios com uma cobertura ≥ 10% tiveram uma reducao de 39% (p < 0,05) na mortalidade por diarreia, de 14% (p < 0,01) na taxa de mortalidade em menores de cinco anos e de 6% (p < 0,05) nas internacoes hospitalares, em comparacao com municipios sem cobertura ou com cobertura menor, ajustando-se pelas covariaveis. Nao teve efeito na mortalidade por causas externas, utilizada como controle. Programas de saneamento basico, focalizados em areas de maior vulnerabilidade, podem ter um grande impacto na reducao das desigualdades em saude.