Polyunsaturated fatty acid consumption and weight gain during pregnancy: NISAMI Cohort study.

OBJECTIVES: Few studies have investigated the influence of polyunsaturated fatty acid consumption on excessive weight gain during pregnancy. Thus, we analyzed the association between the intake of polyunsaturated fatty acids (ω-6 and ω-3) and weight gain in women during pregnancy. METHODS: This is a cohort study of 250 pregnant women enrolled in municipal pre-natal services. Weight, height, and dietary intake of polyunsaturated fatty acids were evaluated at the baseline. The semi-quantitative food frequency questionnaire was employed to assess the main exposure. Gestational weight was measured in the first, second, and third trimesters. A dietary pattern involving the consumption of fatty acids was identified through factor analysis. A generalized estimating equation was used for the data analysis. RESULTS: The prevalence of excessive weight gain at the end of pregnancy was 35.2%. Consumption patterns 1 (salted meats, offal, vegetable oil, snacks, legumes, and oleaginous foods) and 2 (red meat, sausages, butter, margarine, mayonnaise, acarajé, caruru, vatapá, and refined cereals) revealed a risk for the accumulation of excess weight during pregnancy. Women who adhered to consumption patterns 1 (RR: 2.39; 95% CI: 1.44-3.94) and 2 (RR: 2.39; 95% CI: 1.44-3.94) were more susceptible to excess weight gain during pregnancy. CONCLUSIONS: Women who adhered to dietary patterns involving foods that are sources of ω-6 fatty acids and saturated fatty acids were more susceptible to gaining weight during pregnancy compared to those who adhered less to these patterns.

Dietary intake of university students during COVID-19 social distancing in the Northeast of Brazil and associated factors.

This study aimed to analyze the influence of COVID-19 social distancing on the dietary pattern of university students in the Northeast of Brazil and associated factors. This is a cross-sectional study of 955 students from four universities carried out via a web survey containing social, economic, demographic, and health information. A food frequency questionnaire was used to evaluate diet. Weight and dietary alterations were reported. Exploratory factor analysis and multivariate logistic regression were used as statistical analyses. The mean age was 26 and 53.7% of the students observed an increase in their weight. Four dietary patterns were identified: (1) a predominantly in natura pattern, (2) a pattern of processed and ultra-processed foods, (3) a protein-based pattern, and (4) an infusion-based pattern. It was observed that students having a darker skin colour (OR 1.8; CI 95% 1.3-2.6) and 19-29 years old and not being a health course student (OR 1.5; CI 95% 1.1-2.1) were associated with greater adhesion to the in natura pattern. Not engaging in physical activity was statistically associated with not adhering (OR 0.5; CI 95% 0.4-0.7) to that pattern. The university students who saw an alteration in their weight during the social distancing period studied presented a greater probability of consuming the processed and ultra-processed foods pattern (OR 1.8; CI 95% 1.2-2.6), while the men (OR 0.7; CI 95% 0.4-0.9) and those not engaging in physical activity (OR 0.7; CI 95% 0.5-0.9) presented less adhesion to that pattern. These findings indicate that social isolation affected the dietary intake of university students, with adhesion to mixed dietary patterns in terms of health. The adhesion to the pattern of processed and ultra-processed foods identified may affect the students' health, especially the occurrence of excess weight and obesity.

Post-partum weight retention in Northeastern Brazilian women: a prospective NISAMI cohort study.

BACKGROUND: Weight retention during the post-partum period is associated with excessive weight gain. OBJECTIVES: To investigate factors associated with maternal weight retention at six months post-partum (PPWR). DESIGN AND SETTING: A prospective cohort study was conducted with 127 women monitored using prenatal services. METHODS: The outcome variable was represented by post-partum maternal weight retention and calculated as the difference between the mother's weight at sixth month post-partum and her pregestational weight. RESULTS: The mean age of the pregnant women was 26.7 ± 5.25 years old, and the post-partum maternal weight retention was 46.5%. The proximal determinants showed a direct association with PPWR after adjusting for the distal and intermediate variables: excessive gestational weight gain (odds ratio [OR]:3.34; confidence interval [CI]:1.16-9.59), greater adhesion to dietary intake pattern 2 (composed of red meats and derivatives, eggs, industrialized foods, and coffee) (OR:2.70; CI:1.16-6.32), and the absence of exclusive maternal breastfeeding in the first month (OR:3.40; CI:1.27-9.12), as well as primiparity (OR:2.36; CI:1.00-5.55), an intermediate determinant. Insufficient weight gain in pregnancy was inversely associated with the outcome (OR:0.35; CI:0.31-0.93). CONCLUSIONS: Among the hierarchical determinants, proximal factors were interrelated with maternal weight retention, indicating that excessive total weight gain, an inadequate dietary intake pattern, and the absence of exclusive maternal breastfeeding in the first month of life work as dampeners of the return to pre-gestational weight. Prepartum and post-partum care interventions can contribute to reducing excess weight in women.

Pesticide contamination of lactating mothers' milk in Latin America: a systematic review.

OBJECTIVE: To identify the prevalence of contamination by pesticides and their metabolites in the milk of lactating mothers in Latin America. METHODS: In this systematic review, the PubMed, LILACS, Embase, and Scopus databases were searched up to January 2022 to identify observational studies. The Mendeley software was used to manage these references. The risk of bias assessment was evaluated according to the checklist for prevalence studies and writing design, by the Prisma guidelines. RESULTS: This study retrieved 1835 references and analyzed 49 studies. 69.38% of the analyzed studies found a 100% prevalence of breast milk contamination by pesticides among their sample. Main pesticides include dichlorodiphenyltrichloroethane (DDT) and its isomers (75.51%), followed by the metabolite dichlorodiphenyldichloroethylene (DDE) (69.38%) and hexachlorocyclohexane (HCH) (46.93%). This study categorized most (65.30%) studies as having a low risk of bias. CONCLUSIONS: This review shows a high prevalence of pesticide contamination in the breast milk of Latin American women. Further investigations should be carried out to assess contamination levels in breast milk and the possible effects of these substances on maternal and child health.

Racial Disparities in Medication Use During Pregnancy: Results from the NISAMI Cohort.

Purpose: This study aimed to evaluate racial disparities in medication use and associated factors among pregnant women receiving prenatal care at Brazilian Unified Health System primary care health units in the northeast region. Patients and Methods: A total of 1058 pregnant women in the NISAMI Cohort were interviewed between June 2012 and February 2014. Medicines used during pregnancy were classified according to the Anatomical Therapeutic Chemical (ATC) classification system and ANVISA pregnancy risk categories. Prevalence ratios (crude and adjusted) and 95% confidence intervals (CIs) were estimated using Poisson regression with robust error variance. All analyses were stratified by race (Asian, black, brown/mixed, Brazilian indigenous, and white). Results: Approximately 84% of the pregnant women used at least one medication, with a lower proportion among white women. The most reported medications were antianemic preparations (71.08%; 95% CI 68.27-73.72%), analgesics (21.74%; 95% CI 19.36-24.32%), and drugs for functional gastrointestinal disorders (18.81%; 95% CI 16.57-21.28%). Approximately 29% of women took potentially risky medications during pregnancy, with a higher prevalence among Asian and white women. Factors associated with medication use during pregnancy include a greater number of prenatal consultations, higher education levels, health problems, and smoking. In addition, maternal age above 25 years, smoking status, and two or more previous pregnancies were associated with potentially risky medication use during pregnancy. Conclusion: A high prevalence of medication use during pregnancy was found; however, this prevalence was lower among white women. Nonetheless, black and brown women used antianemic preparations less frequently. This finding suggests that race is a factor of inequity in prenatal care, demanding public policies to mitigate it.

Validation and calibration of the Food Consumption Frequency Questionnaire for pregnant women.

BACKGROUND: Few food frequency questionnaires (FFQ) have been validated for pregnant women, particularly those in small- and medium-sized cities in different regions of Brazil. OBJECTIVES: To validate and calibrate a semiquantitative FFQ for pregnant women. DESIGN AND SETTING: The study was validated with a sample of 50 pregnant women (≥ 18 years) enrolled in Brazilian prenatal services. METHODS: An FFQ and a 24-hour recall were used to evaluate dietary intake. Dietary variables were tested for normality and log-converted when asymmetrical. Pearson's Correlation Coefficient was used to validate the questionnaire. Linear regression was applied to extract calibration factors. All variables underlying the consumption analysis were adjusted for energy. RESULTS: The mean age of the pregnant women was 26 years ± 6.2 years; 58% were in their first trimester, and 30% were identified as overweight/obese. The Pearson correlation analysis results indicated that the FFQ overestimated energy and nutrient intake, whose coefficients ranged from -0.15 (monounsaturated fat) to 0.50 (carbohydrate). Adjusting for energy reduced the mean values of intake coefficients, which now ranged from -0.33 (sodium) to 0.96 (folate). The calibration analysis results indicated variation in the coefficients from -0.23 (sodium) to 1.00 (folate). Calibration produced satisfactory coefficients for the FFQ compared with the reference standard for energy, macronutrients, monounsaturated fat, cholesterol, vitamins B12/C, folate, sodium, iron, and calcium. CONCLUSIONS: After validating and calibrating tests, we observed that the FFQ was adequately accurate for assessing the food consumption of the pregnant women in this study.

Influence of conditional cash transfer program on prenatal care and nutrition during pregnancy: NISAMI cohort study.

BACKGROUND: There are few studies on the influence of a cash transfer program on nutritional outcomes from pregnancy. OBJECTIVES: To analyze how a Brazilian conditional cash transfer program (Bolsa Familia Program, BFP) was associated with changes in body mass index (BMI) and food consumption among pregnant women. DESIGN AND SETTING: Cohort study on 250 pregnant women (≥ 18 years of age) in Brazilian prenatal services. METHODS: A food frequency questionnaire was used to evaluate dietary intake. Weight was measured in each gestational trimester. Generalized estimation equations and structural equation modeling were used for statistical analyses. Correlations were analyzed using standardized coefficients (SCs). RESULTS: Women benefitting from the BFP were of greater age and had lower education. The BFP exerted a direct negative effect on the pregnant women's consumption choices regarding refined grains, regional foods, vegetable oil, sausages, salted meats and snacks (SC = -0.10) and on maternal BMI (SC = -0.12). Among the intermediate variables, we observed that the time elapsed since pregnancy and the month of prenatal onset had direct negative effects; and that the number of visits to doctors, family income and number of years of education had direct positive effects. CONCLUSIONS: Beneficiaries were less likely to increase their BMI outside of the recommended standards and had a greater tendency to receive prenatal care. Participation in the BFP had a direct negative effect on adherence to unhealthy diets.

Socioeconomic and nutritional aspects of pregnant women assisted by Programa Bolsa Família: cohort NISAMI.

The objective of this study was to evaluate the socioeconomic and nutritional assistance factors of pregnant women who are beneficiaries of the Bolsa Família Program and were attended at a prenatal service in the city of Recôncavo da Bahia. A cohort study was conducted with 250 pregnant women from the prenatal service in 16 Family Health Units from August 2013 to December 2014. A structured and previously tested questionnaire was used to collect data. Socioeconomic and nutritional variables were used. It was identified that the average age was 28.3 years, of these, 85.2% studied until high school, 72.4% of pregnant women reported having income less than or equal to two minimum wages, with a mean of 1,036.3 and 26.8% reported receiving the benefit. It was observed that 40% had a pre-gestational Body Mass Index of overweight, 38% presented adequate weight gain for Gestational Age; 90.57% performed more than 7 consultations and 75.6% reported that they made use of alcoholic beverages or stopped in the gestation. The Bolsa Família Program as an integrated strategy for social inclusion and economic development seems to have a protective effect on the nutritional health of pregnant women in the municipality.

FADS1 and FADS2 Gene Polymorphisms Modulate the Relationship of Omega-3 and Omega-6 Fatty Acid Plasma Concentrations in Gestational Weight Gain: A NISAMI Cohort Study.

The polymorphisms of fatty acid desaturase genes FADS1 and FADS2 have been associated with an increase in weight gain. We investigated FADS1 and FADS2 gene polymorphisms and the relation between ω-3 and ω-6 fatty acid plasma concentrations and gestational weight gain. A prospective cohort study of 199 pregnant women was followed in Santo Antônio de Jesus, Brazil. Plasma levels of polyunsaturated fatty acids (PUFAs) were measured at baseline and gestational weight gain during the first, second, and third trimesters. Fatty acid recognition was carried out with the aid of gas chromatography. Single nucleotide polymorphisms (SNPs) were genotyped using real-time PCR. Statistical analyses included Structural Equation Modelling. A direct effect of FADS1 and FADS2 gene polymorphisms on gestational weight was observed; however, only the SNP rs174575 (FADS2) showed a significant positive direct effect on weight over the course of the pregnancy (0.106; p = 0.016). In terms of the influence of SNPs on plasma levels of PUFAs, it was found that SNP rs174561 (FADS1) and SNP rs174575 (FADS2) showed direct adverse effects on plasma concentrations of ω-3 (eicosapentaenoic acid and alpha-linoleic acid), and only SNP rs174575 had positive direct effects on plasma levels of ARA and the ARA/LA (arachidonic acid/linoleic acid) ratio, ω-6 products, while the SNP rs3834458 (FADS2) had an adverse effect on plasma concentrations of EPA, leading to its increase. Pregnant women who were heterozygous and homozygous for the minor allele of the SNP rs3834458 (FADS2), on the other hand, showed larger concentrations of series ω-3 substrates, which indicates a protective factor for women's health.

Investigation of maternal polymorphisms in genes related to glucose homeostasis and the influence on birth weight: a cohort study.

OBJECTIVES: To contribute to a better understanding of the maternal genetic mechanisms that influence obstetric outcomes and that are involved in maternal and child health, this study aimed to evaluate the association between maternal genetic variants and the offspring birth weight by analyzing single-nucleotide polymorphisms (SNPs) in genes related to glucose homeostasis. METHODS: Three polymorphisms were analyzed (GCK rs1799884, TCF7L2 rs7903146 and LEPR rs1137101) in 250 pregnant women who participated in a Brazilian prospective cohort study. Genotyping was performed by Real-Time Polymerase Chain Reaction (qPCR) using pre-designed TaqMan® SNP genotyping assays. Vitamin D dosage was performed by chemiluminescence. Variance, Pearson's chi-square test and multiple linear regression were used for the statistical analysis. RESULTS: It was possible to verify a significant association between birth weight and maternal GCK rs1799884 when obstetric outcomes, clinical and anthropometric characteristics were taken into consideration. The children of homozygous women for the minor allele GCK rs1799884 presented lower birth weight (ß = -335.25, 95% CI = -669.39; -1.17, p = 0.04). Furthermore, a direct link between a leptin receptor variant and gestational duration was found (p = 0.037). CONCLUSION: The variant GCK rs1799884 (mm) was associated with a reduction in newborn weight in the miscegenated Brazilian population.

Post-partum weight retention in Northeastern Brazilian women: a prospective NISAMI cohort study

ABSTRACT BACKGROUND: Weight retention during the post-partum period is associated with excessive weight gain. OBJECTIVES: To investigate factors associated with maternal weight retention at six months post-partum (PPWR). DESIGN AND SETTING: A prospective cohort study was conducted with 127 women monitored using prenatal services. METHODS: The outcome variable was represented by post-partum maternal weight retention and calculated as the difference between the mother's weight at sixth month post-partum and her pregestational weight. RESULTS: The mean age of the pregnant women was 26.7 ± 5.25 years old, and the post-partum maternal weight retention was 46.5%. The proximal determinants showed a direct association with PPWR after adjusting for the distal and intermediate variables: excessive gestational weight gain (odds ratio [OR]:3.34; confidence interval [CI]:1.16-9.59), greater adhesion to dietary intake pattern 2 (composed of red meats and derivatives, eggs, industrialized foods, and coffee) (OR:2.70; CI:1.16-6.32), and the absence of exclusive maternal breastfeeding in the first month (OR:3.40; CI:1.27-9.12), as well as primiparity (OR:2.36; CI:1.00-5.55), an intermediate determinant. Insufficient weight gain in pregnancy was inversely associated with the outcome (OR:0.35; CI:0.31-0.93). CONCLUSIONS: Among the hierarchical determinants, proximal factors were interrelated with maternal weight retention, indicating that excessive total weight gain, an inadequate dietary intake pattern, and the absence of exclusive maternal breastfeeding in the first month of life work as dampeners of the return to pre-gestational weight. Prepartum and post-partum care interventions can contribute to reducing excess weight in women.

Validation and calibration of the Food Consumption Frequency Questionnaire for pregnant women

ABSTRACT BACKGROUND: Few food frequency questionnaires (FFQ) have been validated for pregnant women, particularly those in small- and medium-sized cities in different regions of Brazil. OBJECTIVES: To validate and calibrate a semiquantitative FFQ for pregnant women. DESIGN AND SETTING: The study was validated with a sample of 50 pregnant women (≥ 18 years) enrolled in Brazilian prenatal services. METHODS: An FFQ and a 24-hour recall were used to evaluate dietary intake. Dietary variables were tested for normality and log-converted when asymmetrical. Pearson's Correlation Coefficient was used to validate the questionnaire. Linear regression was applied to extract calibration factors. All variables underlying the consumption analysis were adjusted for energy. RESULTS: The mean age of the pregnant women was 26 years ± 6.2 years; 58% were in their first trimester, and 30% were identified as overweight/obese. The Pearson correlation analysis results indicated that the FFQ overestimated energy and nutrient intake, whose coefficients ranged from −0.15 (monounsaturated fat) to 0.50 (carbohydrate). Adjusting for energy reduced the mean values of intake coefficients, which now ranged from −0.33 (sodium) to 0.96 (folate). The calibration analysis results indicated variation in the coefficients from −0.23 (sodium) to 1.00 (folate). Calibration produced satisfactory coefficients for the FFQ compared with the reference standard for energy, macronutrients, monounsaturated fat, cholesterol, vitamins B12/C, folate, sodium, iron, and calcium. CONCLUSIONS: After validating and calibrating tests, we observed that the FFQ was adequately accurate for assessing the food consumption of the pregnant women in this study.

Pesticide contamination of lactating mothers' milk in Latin America: a systematic review

ABSTRACT OBJECTIVE To identify the prevalence of contamination by pesticides and their metabolites in the milk of lactating mothers in Latin America. METHODS In this systematic review, the PubMed, LILACS, Embase, and Scopus databases were searched up to January 2022 to identify observational studies. The Mendeley software was used to manage these references. The risk of bias assessment was evaluated according to the checklist for prevalence studies and writing design, by the Prisma guidelines. RESULTS This study retrieved 1835 references and analyzed 49 studies. 69.38% of the analyzed studies found a 100% prevalence of breast milk contamination by pesticides among their sample. Main pesticides include dichlorodiphenyltrichloroethane (DDT) and its isomers (75.51%), followed by the metabolite dichlorodiphenyldichloroethylene (DDE) (69.38%) and hexachlorocyclohexane (HCH) (46.93%). This study categorized most (65.30%) studies as having a low risk of bias. CONCLUSIONS This review shows a high prevalence of pesticide contamination in the breast milk of Latin American women. Further investigations should be carried out to assess contamination levels in breast milk and the possible effects of these substances on maternal and child health.

Associação entre estado nutricional, indicadores socioeconômicos e quesito raça/cor em gestantes do Recôncavo da Bahia, Brasil / Association between nutritional status, socioeconomic indicators and race/color question in pregnant women in the Recôncavo da Bahia, Brazil

O estado nutricional gestacional adequado constitui-se como elemento essencial para a saúde materna e fetal. Este estudo teve como objetivo identificar a associação entre determinantes sociais, quesito raça/cor e estado nutricional, em gestantes do Recôncavo da Bahia, Brasil. Trata-se de um estudo ecológico, com dados extraídos do Sistema de Vigilância Alimentar e Nutricional no ano de 2020, referente ao estado nutricional de gestantes adultas e adolescentes dos 19 municípios do Recôncavo da Bahia. Foi utilizada a regressão quantílica para a análise do desfecho do estado nutricional de gestantes, variável exposição principal, raça/cor autorreferida e covariáveis Coeficiente de Gini (CG) e Índice de Desenvolvimento Humano (IDHM). Foram acompanhadas 4.061 gestantes (14,35% eram adolescentes) com predominância daquelas que se autodeclararam pretas ou pardas (62,34%). Houve prevalência de excesso de peso em 53,36% das gestantes. Identificou-se associação positiva do excesso de peso com a raça/cor preta ou parda e inversamente ao CG. Este estudo revelou que o estado nutricional de gestantes é influenciado pela raça/cor preta e/ou parda e pelo CG. Tais resultados podem contribuir para o planejamento de programas e/ou projetos que incluam ações de alimentação e nutrição e visam o acompanhamento nutricional de gestantes, principalmente dos grupos socialmente vulnerabilizados. (AU)

Adequate gestational nutritional status is an essential element for maternal and fetal health. The objective of this study was to identify the association between social determinants, race/color and nutritional status in pregnant women from Recôncavo da Bahia, Brazil. This ecological study, utilized data extracted from the 2020 Food and Nutrition Surveillance System, focusing on the nutritional status of adults and adolescents pregnant women across the 19 municipalities in the Recôncavo da Bahia. Quantile Regression was employed to analyze the nutritional status of pregnant women, considering the main exposure variable as self-reported race/color and covariates such as the Gini Coefficient and Human Development Index. In 2020, a total of 4,061 pregnant women were followed, with 14.35% being adolescents. The majority of pregnant women self-identified as black or brown (62.34%). The prevalence of overweight among pregnant women was 53.36%. The analysis revealed a positive association between overweight and black or brown race/color, while an inverse association was observed with the Gini Coefficient. These findings have implications for planning programs and projects that encompass food and nutrition interventions aimed at monitoring and improving the nutritional status of pregnant women, particularly those belonging to socially vulnerable groups. (AU)

Associação entre estado nutricional, indicadores socioeconômicos e quesito raça/cor em gestantes do Recôncavo da Bahia, Brasil / Association between nutritional status, socioeconomic indicators and race/color question in pregnant women in the Recôncavo da Bahia, Brazil

O estado nutricional gestacional adequado constitui-se como elemento essencial para a saúde materna e fetal. Este estudo teve como objetivo identificar a associação entre determinantes sociais, quesito raça/cor e estado nutricional, em gestantes do Recôncavo da Bahia, Brasil. Trata-se de um estudo ecológico, com dados extraídos do Sistema de Vigilância Alimentar e Nutricional no ano de 2020, referente ao estado nutricional de gestantes adultas e adolescentes dos 19 municípios do Recôncavo da Bahia. Foi utilizada a regressão quantílica para a análise do desfecho do estado nutricional de gestantes, variável exposição principal, raça/cor autorreferida e covariáveis Coeficiente de Gini (CG) e Índice de Desenvolvimento Humano (IDHM). Foram acompanhadas 4.061 gestantes (14,35% eram adolescentes) com predominância daquelas que se autodeclararam pretas ou pardas (62,34%). Houve prevalência de excesso de peso em 53,36% das gestantes. Identificou-se associação positiva do excesso de peso com a raça/cor preta ou parda e inversamente ao CG. Este estudo revelou que o estado nutricional de gestantes é influenciado pela raça/cor preta e/ou parda e pelo CG. Tais resultados podem contribuir para o planejamento de programas e/ou projetos que incluam ações de alimentação e nutrição e visam o acompanhamento nutricional de gestantes, principalmente dos grupos socialmente vulnerabilizados.

Adequate gestational nutritional status is an essential element for maternal and fetal health. The objective of this study was to identify the association between social determinants, race/color and nutritional status in pregnant women from Recôncavo da Bahia, Brazil. This ecological study, utilized data extracted from the 2020 Food and Nutrition Surveillance System, focusing on the nutritional status of adults and adolescents pregnant women across the 19 municipalities in the Recôncavo da Bahia. Quantile Regression was employed to analyze the nutritional status of pregnant women, considering the main exposure variable as self-reported race/color and covariates such as the Gini Coefficient and Human Development Index. In 2020, a total of 4,061 pregnant women were followed, with 14.35% being adolescents. The majority of pregnant women self-identified as black or brown (62.34%). The prevalence of overweight among pregnant women was 53.36%. The analysis revealed a positive association between overweight and black or brown race/color, while an inverse association was observed with the Gini Coefficient. These findings have implications for planning programs and projects that encompass food and nutrition interventions aimed at monitoring and improving the nutritional status of pregnant women, particularly those belonging to socially vulnerable groups.

Assistência pré-natal e amamentação exclusiva na atenção primária à saúde em um município do Sudoeste da Bahia / Prenatal care and exclusive breastfeeding in primary health care in a municipality in the Southwest of Bahia

Introdução: o aleitamento materno exclusivo deve ser promovido e fortalecido em todas as esferas públicas, especialmente na Atenção Primária à Saúde (APS), que tem o pré-natal como elemento importante para assistência e acompanhamento da mulher durante a gestação. Objetivo: identificar a associação entre assistência pré-natal e amamentação exclusiva em crianças menores de seis meses acompanhadas na APS em um município do Sudoeste da Bahia. Metodologia: estudo transversal, envolvendo 75 mães/crianças de zero a seis meses cadastradas no programa de Crescimento e Desenvolvimento do serviço de saúde do município de Jequié, Bahia, no período de março a agosto de 2018. Empregou-se o Teste de Qui-Quadrado de Pearson, para avaliar associação entre variáveis da assistência pré-natal e amamentação exclusiva. Resultados: a prevalência de aleitamento materno exclusivo registrado neste estudo foi de 36%.Observou-se que,mães com mais de seis consultas de pré-natal durante a gestação apresentaram maior prevalência de amamentação exclusiva (55,2%; p=0,019). A variável orientações sobre amamentação exclusiva no pré-natal não foi estatisticamente associada ao desfecho (0,457), porém descritivamente identificou-se que as mães que tiveram orientações durante o pré-natal apresentaram tendência de amamentar exclusivamente (56,7%; p= 0,457). Conclusão: a assistência pré-natal pode ser considerada elemento protetor na prática da amamentação exclusiva, e por isso a promoção e apoio ao aleitamento materno deve ser fortalecida na APS.

Introduction: exclusive breastfeeding should be promoted and strengthened in all public spheres, especially in Primary Health Care (PHC), which has prenatal care as an important element for the assistance and monitoring of women during pregnancy. Objective:to identify the link between prenatal care and exclusive breastfeeding in children younger than six months followed up in the PHC in a municipality in the Southwest of Bahia. Methodology: cross-sectional study, with 75 mothers/children aged zero to six months enrolled in the Growth and Development program of the health service in the municipality of Jequié, Bahia, from March to August 2018. Pearson's Chi-Square Test was used to assess the association between prenatal care variables and exclusive breastfeeding. Results: the prevalence of exclusive breastfeeding recorded in this study was 36%. It was observed that mothers with more than six prenatal consultations during pregnancy had a higher prevalence of exclusive breastfeeding (55.2%; p=0.019). The variable guidance on exclusive breastfeeding during prenatal care was not statistically associated with the outcome (0.457), however it was descriptively identified that mothers who received guidance during prenatal care tended to breastfeed exclusively (56.7%; p= 0.457 ). Conclusion:prenatal care can be considered a protective element in the practice of exclusive breastfeeding, and therefore the promotion and support of breastfeeding should be strengthened in PHC.

Influence of conditional cash transfer program on prenatal care and nutrition during pregnancy: NISAMI cohort study

ABSTRACT BACKGROUND: There are few studies on the influence of a cash transfer program on nutritional outcomes from pregnancy. OBJECTIVES: To analyze how a Brazilian conditional cash transfer program (Bolsa Familia Program, BFP) was associated with changes in body mass index (BMI) and food consumption among pregnant women. DESIGN AND SETTING: Cohort study on 250 pregnant women (≥ 18 years of age) in Brazilian prenatal services. METHODS: A food frequency questionnaire was used to evaluate dietary intake. Weight was measured in each gestational trimester. Generalized estimation equations and structural equation modeling were used for statistical analyses. Correlations were analyzed using standardized coefficients (SCs). RESULTS: Women benefitting from the BFP were of greater age and had lower education. The BFP exerted a direct negative effect on the pregnant women's consumption choices regarding refined grains, regional foods, vegetable oil, sausages, salted meats and snacks (SC = -0.10) and on maternal BMI (SC = -0.12). Among the intermediate variables, we observed that the time elapsed since pregnancy and the month of prenatal onset had direct negative effects; and that the number of visits to doctors, family income and number of years of education had direct positive effects. CONCLUSIONS: Beneficiaries were less likely to increase their BMI outside of the recommended standards and had a greater tendency to receive prenatal care. Participation in the BFP had a direct negative effect on adherence to unhealthy diets.

Socioeconomic and nutritional aspects of pregnant women assisted by Programa Bolsa Família: cohort NISAMI / Aspectos socioeconômicos e nutricionais de gestantes do Programa Bolsa Família: coorte NISAMI

Abstract The objective of this study was to evaluate the socioeconomic and nutritional assistance factors of pregnant women who are beneficiaries of the Bolsa Família Program and were attended at a prenatal service in the city of Recôncavo da Bahia. A cohort study was conducted with 250 pregnant women from the prenatal service in 16 Family Health Units from August 2013 to December 2014. A structured and previously tested questionnaire was used to collect data. Socioeconomic and nutritional variables were used. It was identified that the average age was 28.3 years, of these, 85.2% studied until high school, 72.4% of pregnant women reported having income less than or equal to two minimum wages, with a mean of 1,036.3 and 26.8% reported receiving the benefit. It was observed that 40% had a pre-gestational Body Mass Index of overweight, 38% presented adequate weight gain for Gestational Age; 90.57% performed more than 7 consultations and 75.6% reported that they made use of alcoholic beverages or stopped in the gestation. The Bolsa Família Program as an integrated strategy for social inclusion and economic development seems to have a protective effect on the nutritional health of pregnant women in the municipality.

Resumo Objetivou-se avaliar os fatores socioeconômicos e de assistência nutricional de gestantes beneficiárias do Programa Bolsa Família que foram atendidas em serviço de pré-natal em município do Recôncavo da Bahia. Estudo transversal realizado com 250 gestantes do serviço de pré-natal em 16 Unidades de Saúde da Família, de agosto de 2013 a dezembro de 2014. Para a coleta de dados, utilizou-se questionário fechado envolvendo informações socioeconômicas, antropométricas e de saúde da gestante. Identificou-se que a média de idade das gestantes foi de 28,3 anos, das quais 85,2% estudaram até o ensino médio, 72,4% das gestantes afirmaram possuir renda menor ou igual a dois salários mínimos, com uma média de 1.036,3 reais, e 26,8% declararam receber o benefício. Observou-se que 40% encontravam-se com Índice de Massa Corporal pré-gestacional de excesso de peso, 38% apresentaram um ganho de peso adequado para Idade Gestacional; 90,57% realizaram mais de 7 consultas, e 75,6% relataram que fizeram uso de bebida alcoólica ou pararam na gestação. O Programa Bolsa Família, enquanto uma estratégia integrada de inclusão social e de desenvolvimento econômico, parece exercer efeito protetor na saúde nutricional das gestantes do município.

Investigation of maternal polymorphisms in genes related to glucose homeostasis and the influence on birth weight: a cohort study

Abstract Objectives: To contribute to a better understanding of the maternal genetic mechanisms that influence obstetric outcomes and that are involved in maternal and child health, this study aimed to evaluate the association between maternal genetic variants and the offspring birth weight by analyzing single-nucleotide polymorphisms (SNPs) in genes related to glucose homeostasis. Methods: Three polymorphisms were analyzed (GCK rs1799884, TCF7L2 rs7903146 and LEPR rs1137101) in 250 pregnant women who participated in a Brazilian prospective cohort study. Genotyping was performed by Real-Time Polymerase Chain Reaction (qPCR) using pre-designed TaqMan® SNP genotyping assays. Vitamin D dosage was performed by chemiluminescence. Variance, Pearson's chi-square test and multiple linear regression were used for the statistical analysis. Results: It was possible to verify a significant association between birth weight and maternal GCK rs1799884 when obstetric outcomes, clinical and anthropometric characteristics were taken into consideration. The children of homozygous women for the minor allele GCK rs1799884 presented lower birth weight (β = -335.25, 95% CI = -669.39; -1.17, p = 0.04). Furthermore, a direct link between a leptin receptor variant and gestational duration was found (p = 0.037). Conclusion: The variant GCK rs1799884 (mm) was associated with a reduction in newborn weight in the miscegenated Brazilian population.