Michele Drehmer

Association of Second and Third Trimester Weight Gain in Pregnancy with Maternal and Fetal Outcomes

Objective To investigate the association between weekly weight gain, during the second and third trimesters, classified according to the 2009 Institute of Medicine (IOM/NRC) recommendations, and maternal and fetal outcomes. Methods Gestational weight gain was evaluated in 2,244 pregnant women of the Brazilian Study of Gestational Diabetes (Estudo Brasileiro do Diabetes Gestacional – EBDG). Outcomes were cesarean delivery, preterm birth and small or large for gestational age birth (SGA, LGA). Associations between inadequate weight gain and outcomes were estimated using robust Poisson regression adjusting for pre-pregnancy body mass index, trimester-specific weight gain, age, height, skin color, parity, education, smoking, alcohol consumption, gestational diabetes and hypertensive disorders in pregnancy. Results In fully adjusted models, in the second trimester, insufficient weight gain was associated with SGA (relative risk [RR] 1.72, 95% confidence interval [CI] 1.26–2.33), and excessive weight gain with LGA (RR 1.64, 95% CI 1.16–2.31); in third trimester, excessive weight gain with preterm birth (RR 1.70, 95% CI 1.08–2.70) and cesarean delivery (RR 1.21, 95% CI 1.03–1.44). Women with less than recommended gestational weight gain in the 2nd trimester had a lesser risk of cesarean deliveries (RR 0.82, 95% CI 0.71–0.96) than women with adequate gestational weight gain in this trimester. Conclusion Though insufficient weight gain in the 3rd trimester was not associated with adverse outcomes, other deviations from recommended weight gain during second and third trimester were associated with adverse pregnancy outcomes. These findings support, in part, the 2009 IOM/NRC recommendations for nutritional monitoring during pregnancy.

Reprodutibilidade e validade relativa do Questionário de Frequência Alimentar do ELSA-Brasil

Avaliou-se a reprodutibilidade e a validade do Questionario de Frequencia Alimentar (QFA) utilizado no Estudo Longitudinal de Saude do Adulto (ELSA-Brasil). Foram aplicados tres registros alimentares e um QFA em dois momentos no periodo de um ano (n = 281). Valores de energia e nutrientes dos registros alimentares foram deatenuados e Log transformados. Para avaliacao da reprodutibilidade e validade foi aplicado o teste de correlacao intraclasse (CCI) e calculados percentuais de concordância do consumo de nutrientes apos categorizacao por tercis. Na avaliacao da reprodutibilidade, coeficientes de CCI variaram de 0,55-0,83 para proteina e vitamina E, respectivamente; na avaliacao da validade, variaram de 0,20-0,72 para selenio e calcio, respectivamente. Concordâncias exata e adjacente entre metodos variaram de 82,9% para vitamina E a 89% para lipidio e calcio (media = 86%). Foi encontrada uma discordância media de 13,6%. Conclui-se que o QFA ELSA-Brasil apresenta confiabilidade satisfatoria para todos nutrientes e validade relativa razoavel para energia, macronutrientes, calcio, potassio e vitaminas E e C.

Inappropriate Eating Behaviors During Pregnancy: Prevalence and Associated Factors among Pregnant Women Attending Primary Care in Southern Brazil

OBJECTIVE To examine the prevalence of inappropriate eating behaviors and associated factors among pregnant women in primary care. METHOD The Eating Disorder Examination Questionnaire was used to assess eating disorders and the Primary Care Evaluation of Mental Disorders was used to examine anxiety and depressive symptoms. Body mass index (BMI) and pregestational weight were also assessed. RESULTS Prevalence of binge eating during pregnancy was 17.3% [95% confidence interval (CI) 14.5-20.0], followed by excessive shape (5.6%; 95% CI 4-8) and weight concerns (5.5%; 95% CI 4-8). Binge eating during pregnancy was significantly associated with binge eating before pregnancy [prevalence ratio (PR) = 3.1; 95% CI 2.2-4.3], current anxiety symptoms (PR = 1.8; 95% CI 1.3-2.4), and prepregnancy BMI < 19.8 kg/m(2) (PR = 1.6; 95% CI 1.1-2.5). The prevalence of eating disorders was 0.6% (95% CI 0.01-1.11). DISCUSSION Eating disorder symptoms should be routinely assessed and treated during prenatal care, along with other comorbid psychiatric symptoms such as anxiety.

Total and Full-Fat, but Not Low-Fat, Dairy Product Intakes are Inversely Associated with Metabolic Syndrome in Adults

BACKGROUND Growing evidence suggests that dairy products may have beneficial cardiometabolic effects. The current guidelines, however, limit the intake of full-fat dairy products. OBJECTIVE We investigated the association of dairy consumption, types of dairy products, and dairy fat content with metabolic syndrome (MetSyn). METHODS We analyzed baseline data of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil), a multicenter cohort study of 15,105 adults aged 35-74 y. We excluded participants with known diabetes, cardiovascular diseases, or other chronic diseases, and those who had extreme values of energy intake, leaving 9835 for analysis. Dairy consumption was assessed by a food-frequency questionnaire. We computed servings per day for total and subgroups of dairy intake. We computed a metabolic risk score (MetScore) as the mean z score of waist circumference, systolic blood pressure, HDL cholesterol (negative z score), fasting triglycerides, and fasting glucose. We performed multivariable linear regression to test the association of servings per day of dairy products with MetScore. RESULTS In analyses that adjusted for demographics, menopausal status, family history of diabetes, dietary intake, nondietary lifestyle factors, and body mass index, we observed a graded inverse association for MetScore with total dairy (-0.044 ± 0.01, P = 0.009 for each additional dairy servings per day) and full-fat dairy (-0.126 ± 0.03, P < 0.001) but not with low-fat dairy intake. Associations were no longer present after additional adjustments for dairy-derived saturated fatty acids. CONCLUSIONS Total and especially full-fat dairy food intakes are inversely and independently associated with metabolic syndrome in middle-aged and older adults, associations that seem to be mediated by dairy saturated fatty acids. Dietary recommendations to avoid full-fat dairy intake are not supported by our findings.

Nutrition, mental health and violence: from pregnancy to postpartum Cohort of women attending primary care units in Southern Brazil - ECCAGE study

BackgroundWomans nutritional status, before and during pregnancy, is a strong determinant of health outcomes in the mother and newborn. Gestational weight gain and postpartum weight retention increases risk of overweight or obesity in the future and they depend on the pregestational nutritional status and on food consumption and eating behavior during pregnancy. Eating behavior during pregnancy may be the cause or consequence of mood changes during pregnancy, especially depression, which increases likelihood of postpartum depression. In Brazil, a study carried out in the immediate postpartum period found that one in three women experienced some type of violence during pregnancy. Violence and depression are strongly associated and both exposures during pregnancy are associated with increased maternal stress and subsequent harm to the infant. The main objectives of this study are: to identify food intake and eating behaviors patterns; to estimate the prevalence of common mental disorders and the experience of violence during and after pregnancy; and to estimate the association between these exposures and infants health and development.Methods/DesignThis is a cohort study of 780 pregnant women receiving care in 18 primary care units in two cities in Southern Brazil. Pregnant women were first evaluated between the 16th and 36th week of pregnancy at a prenatal visit. Follow-up included immediate postpartum assessment and around the fifth month postpartum. Information was obtained on sociodemographic characteristics, living circumstances, food intake, eating behaviors, mental health and exposure to violence, and on infants development and anthropometrics measurements.DiscussionThis project will bring relevant information for a better understanding of the relationship between exposures during pregnancy and how they might affect child development, which can be useful for a better planning of health actions aiming to enhance available resources in primary health care.

Associations of dairy intake with glycemia and insulinemia, independent of obesity, in Brazilian adults: the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)

BACKGROUND Inverse associations between dairy intake and the risk of type 2 diabetes have been shown, but more studies are needed, especially from low- and middle-income countries. OBJECTIVE The objective was to describe the association between dairy products and direct measures of glycemic status in adults without known diabetes. DESIGN The Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) includes 15,105 adults, aged 35-74 y, enrolled from universities and research institutions in 6 Brazilian capital cities. We excluded participants with a known diabetes diagnosis, cardiovascular diseases, and cancer. Dairy consumption was assessed by a food-frequency questionnaire, and we computed servings per day for total and subgroups of dairy. Associations with fasting blood glucose (FG) and fasting insulin, 2-h postload glucose (PG), 2-h postload insulin (PI), glycated hemoglobin (Hb A1c), and homeostasis model assessment of insulin resistance (HOMA-IR) were assessed through multivariable linear regression analysis with adjustment for demographic characteristics, behavioral risk factors, other dietary factors, and anthropometric measurements. RESULTS The sample size after exclusions was 10,010. The intake of total dairy was inversely associated with FG (linear β for dairy servings/d = -0.46 ± 0.2 mg/dL), PG (-1.25 ± 0.5 mg/dL), PI (-1.52 ± 0.6 mg/dL), Hb A1c (-0.02 ± 0.0%), and HOMA-IR (-0.04 ± 0.0) after adjustment for all covariates (P < 0.05 for all). The findings were consistent across categories of sex, race, obesity status, and dairy fat amount (reduced-fat vs. full-fat dairy). Fermented dairy products showed particularly strong inverse associations with the outcomes, with adjusted differences for a 1-serving/d increment of -0.24 (95% CI: -0.46, -0.02) mg/dL for FG, -0.86 (-1.42, -0.30) mg/dL for PG, and -0.01% (-0.02%, 0.00%) for Hb A1c. Myristic acid was the only nutrient that appeared to mediate the association between dairy intake and glycemia. CONCLUSION Dairy intake, especially fermented dairy, was inversely associated with measures of glycemia and insulinemia in Brazilian adults without diagnosed diabetes. This trial was registered at clinicaltrials.com as NCT02320461.

Dietary fibre intake of pregnant women attending general practices in southern Brazil – The ECCAGE Study

BACKGROUND Increase in fibre intake during pregnancy may reduce weight gain, glucose intolerance, dyslipidaemia, pre-eclampsia and constipation. Few studies have evaluated adequacy of fibre intake during pregnancy. OBJECTIVE To assess, through an FFQ, the dietary fibre intake of pregnant women receiving prenatal care from general public practices and compare it with current guidelines. DESIGN AND SETTING Cross-sectional analyses of a pregnancy cohort study (ECCAGE-Study of Food Intake and Eating Behaviour in Pregnancy) conducted in eighteen general practices in southern Brazil, from June 2006 to April 2007. SUBJECTS Five hundred and seventy-eight pregnant women with mean (SD) age of 24.9 (6.5) years and mean gestational age of 24.5 (5.8) weeks. RESULTS The mean energy intake was 11 615 kJ/d (2776 kcal/d). The mean total fibre intake (30.2 g/d) was slightly above the recommended value of 28 g/d (P < 0.001), yet 50% (95% CI 46, 54) of the women failed to meet the recommendation. Whole-grain fibre constituted only 1% of total fibre intake in the cereal group. In adjusted Poisson regression analyses, not meeting the recommendation for fibre intake was associated with alcohol intake (prevalence ratio 1.29; 95% CI 1.11, 1.50) and absence of nutritional guidance (prevalence ratio 1.22; 95% CI 1.05, 1.42) during pregnancy. CONCLUSIONS About half of the pregnant women failed to meet the recommended fibre intake, especially those not reporting nutritional guidance during pregnancy. For most women, whole-grain cereal intake was absent or trivial. Taken together, our data indicate the need, at least in this setting, for greater nutritional education in prenatal care.

Reproducibility and relative validity of the Food Frequency Questionnaire used in the ELSA-Brasil

This study evaluated the reproducibility and relative validity of the Food Frequency Questionnaire (FFQ) used in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Participants (n = 281) completed the FFQ and three food records on two occasions during a 12-month period. Energy and nutrient values from food records were disattenuated and log-transformed. Reproducibility and validity were assessed by the intra-class correlation coefficient (ICC). Agreement between the two methods was evaluated by classification in tertiles. In the evaluation of reproducibility, ICC estimated ranged from 0.55 to 0.83 for protein and vitamin E, respectively. On relative validity, ICC ranged from 0.20 to 0.72 for selenium and calcium, respectively. Exact and adjacent agreement between methods varied from 82.9% for vitamin E to 89% for lipids and calcium (mean 86%). Average disagreement was 13.6%. In conclusion, this FFQ showed satisfactory reliability for all nutrients and reasonable validity, especially for energy, macronutrients, calcium, potassium, and vitamins E and C.

Diet assessment in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil): Development of a food frequency questionnaire

OBJECTIVE: The objective of this article is to present the development of the Food Frequency Questionaire used in the Longitudinal Study of Adult Health-Brazil and analyze how diet exposes individuals to cardiovascular diseases and type 2 diabetes Mellitus. METHODS: The Longitudinal Study of Adult Health-Brazil dietary assessment instrument is based on a previously validated Food Frequency Questionaire and the final list of items took into consideration a study done in the six Longitudinal Study of Adult Health-Brazil investigation centers. RESULTS: New foods/preparations were included in the Food Frequency Questionaire with their respective portions, totaling 114 items. The perspectives of dietary analysis and cardiovascular diseases and diabetes are presented in Longitudinal Study of Adult Health-Brazil. CONCLUSION: A new instrument was developed to cover the regional particularities of the study population.

Association of nutritional status, plasma, albumin levels and pulmonary function in cystic fibrosis

BACKGROUND & AIMS Malnutrition is related with pulmonary disease. The aim was to analyze the association of lung function respectively to nutritional status, identified pulmonary pathogens and socioeconomic condition of patients attending a pediatric CF reference center. METHODS Cross-sectional study performed with CF patients aged 6 to 18 years attending a CF-Center in southern Brazil. Nutritional status, plasma albumin level and pulmonary bacterial colonization were assessed. The outcome studied was forced expiratory volume in 1 second (FEV1). RESULTS Eighty-five patients were included in this study. FEV1 was significantly associated with body mass index (BMI) percentiles, plasma albumin level and methicillin resistant Staphylococcus aureus (MRSA) pulmonary colonization. Regression analysis showed that BMI below the 10th percentile was associated with a 25.58% drop in FEV1, and plasma albumin levels equal to or lower than 4.1 mg/dL was associated with 18.6% FEV1 reduction. FEV1 was 14.4% lower in the MRSA infected patients. Plasma albumin of 4.25 mg/dL predicted FEV1 of 60% with 76.9% sensitivity and 72.2% specificity, and 85.7% accuracy. The socioeconomic status was not association with pulmonary function. CONCLUSION BMI below the 10th percentile and albumin below 4.1 mg/dL were predictors of low FEV1. Chronic MRSA infection was associated with lower FEV1. Longitudinal studies may better complement these results.