Publications by authors named "Sara A Silva"

Article Synopsis
  • - Food and nutrition surveillance is essential for shaping and evaluating public policies related to food and health, and analyzing different countries' approaches can reveal useful insights and innovations
  • - This study compared food and nutrition surveillance actions in Brazil and Portugal, noting that while both countries have universal healthcare systems, their socio-economic contexts and specific strategies differ significantly
  • - Key findings highlighted the need for improved data collection and sharing practices in both countries, with Brazil leveraging its National Food and Nutrition Surveillance System and Portugal focusing on integrated national programs for healthy eating
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Objective: To explore the internal structure and analyze evidence of measurement invariance of the Sisvan form of food intake markers of the Food and Nutrition Surveillance System (Sisvan) for children aged six to 23 months.

Methods: Sisvan microdata from 2015 to 2019 were used. After analyzing sample adequacy, exploratory factor analysis was carried out considering factor loadings (≥ 0.

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Background: Several strategies for identifying biologically implausible values in longitudinal anthropometric data have recently been proposed, but the suitability of these strategies for large population datasets needs to be better understood. This study evaluated the impact of removing population outliers and the additional value of identifying and removing longitudinal outliers on the trajectories of length/height and weight and on the prevalence of child growth indicators in a large longitudinal dataset of child growth data.

Methods: Length/height and weight measurements of children aged 0 to 59 months from the Brazilian Food and Nutrition Surveillance System were analyzed.

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Background: The behavior of patients undergoing metabolic bariatric surgery (MBS) has been widely investigated to better understand their attitudes and to formulate effective advisory strategies. Although these elements have been studied separately, the magnitude of these behaviors still needs to be determined from a combined factors approach. This study aimed to identify the lifestyle patterns of patients who underwent MBS 5 or more years ago.

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Objective: To evaluate the quality of anthropometric data of children recorded in the Food and Nutrition Surveillance System (SISVAN) from 2008 to 2017.

Method: Descriptive study on the quality of anthropometric data of children under five years of age admitted in primary care services of the Unified Health System, from the individual databases of SISVAN. Data quality was annually assessed using the indicators: coverage, completeness, sex ratio, age distribution, weight and height digit preference, implausible z-score values, standard deviation, and normality of z-scores.

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The Brazilian Strategy for the Prevention and Care of Childhood Obesity (PROTEJA) aims to implement a set of actions to prevent obesity in Brazil. As such, this qualitative and descriptive documentary study presents the Strategy's stages of the operational design, general proposal, evaluation and monitoring conducted by the Brazilian Ministry of Health's technical coordination. After analyzing the epidemiological data on children and the existing policies aimed at obesity prevention, and reviewing the scientific literature and recommendations, PROTEJA was formulated and approved by the Brazilian Ministry of Health, and 1,320 municipalities committed to implementing 20 essential and 5 complementary actions, from 41, including some structural to improve environments.

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Article Synopsis
  • The study aimed to assess the trends and socio-economic inequalities in infant and young child feeding practices in Brazil, using data from 2008-2019 and the Brazilian deprivation index (BDI).
  • Researchers found that breast-feeding and complementary feeding practices varied significantly between communities with high and low deprivation, with better outcomes in less deprived areas.
  • Despite some overall improvements in complementary feeding indicators, the benefits were not evenly shared, indicating that children in wealthier municipalities experienced greater advancements compared to those in more deprived regions.
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The aim of the present study was to estimate the population coverage of recording food intake markers in Brazil's Food and Nutrition Surveillance System (Sisvan) and mean annual percent change (APC) in coverage according to the system used for data entry (e-SUS APS and Sisvan Web). We conducted an ecological time series study of the period 2015-2019. The data were stratified into region and age group.

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Chronic non-communicable diseases correspond to the main cause of death in the world and have inadequate nutrition as one of its main modifiable risk factors, highlighting the excessive consumption of sodium and its association with cardiovascular diseases, mediated by blood pressure. This study evaluated the impact of different policy scenarios for reducing sodium consumption from processed and ultra-processed foods in the prevention of deaths due to cardiovascular outcomes in the adult population in Brazil. We used secondary data from public reports and databases of the Brazilian Unified National Health System (SUS) and population surveys.

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This study aimed to systematize food and nutrition actions developed in primary health care (PHC) from 1999 to 2019, identifying advances in this period and current perspectives. This is a qualitative study that analyzed documents published between 1999 and 2020, available in scientific databases and in the gray literature. In addition, a quantitative analysis was conducted using information systems from the Brazilian Ministry of Health, such as the Food and Nutrition Surveillance System and the Health Information System for Primary Care, and microdata from the Program for Improving Access and Quality of Primary Health Care (PMAQ-AB).

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Objective: To estimate the prevalence of vitamin A deficiency (VAD) in children and associated risk factors.

Design: Analysis of data from a cross-sectional multicentre study performed in the primary care units of the municipalities from January to June 2015. The children's legal guardians answered a socio-economic questionnaire, and the children's blood samples were obtained by venipuncture.

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Article Synopsis
  • A study in Brazil examined changes in childhood malnutrition from 2009 to 2017, focusing on trends in stunting, wasting, and overweight among children under five using health data.
  • Results showed a significant rise in overweight cases (+3.4%) and a decline in wasting rates (-6.2%) but non-significant changes in stunting and the double burden of malnutrition.
  • The findings highlight persistent issues with stunting and rising overweight rates, particularly among the most vulnerable populations, indicating a need for effective social and political strategies to tackle these malnutrition challenges.
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The association between lifestyle factors and mental health has been evaluated in isolation; however, there has been a lack of information about lifestyle patterns and Common Mental Disorders (CMD) in adolescents. Therefore, the present study aims to assess the association between sets of lifestyle patterns and the occurrence of CMD in Brazilian adolescents evaluated in a national school-based cross-sectional survey. The outcome variable considered was presence of CMD.

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Aim: The present study systematically reviewed the characteristics of the food environment in schools and their immediate vicinities associated with excess weight in adolescents.

Methods: We searched for relevant articles in seven databases. No restrictions were applied on language, publication date, and status of publication.

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Article Synopsis
  • This study examines how both individual and municipal factors influence anemia in children from socially vulnerable areas in Brazil, specifically among children aged 12-59 months.
  • Data was collected from 1,501 children across 48 municipalities, revealing an average hemoglobin level of 12.8g/dL, with considerable variation based on local conditions, such as urbanization rates and number of Community Health Agents.
  • Findings indicate that younger children (under 24 months), those not in daycare, recipients of cash transfer programs, and diagnosed with underweight have lower hemoglobin levels, highlighting the need for targeted interventions at both community and individual levels.
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In Brazil, the promotion, protection, and recovery of health are among the initiatives provided by the public and universal Unified Health System (SUS). The primary healthcare level (PHC), the preferred point of access to the system, plays the role of coordinating and ordinating health care services and actions in the network. In the context of PHC, feeding and nutrition efforts must be aligned with National Feeding and Nutrition Policy (PNAN) guidelines and may be supported by feeding and nutritional surveillance actions.

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An increasing number of original studies suggest the relevance of assessing mental health; however, there has been a lack of knowledge about the magnitude of Common Mental Disorders (CMD) in adolescents worldwide. This study aimed to estimate the prevalence of CMD in adolescents, from the General Health Questionnaire (GHQ-12). Only studies composed by adolescents (10 to 19 years old) that evaluated the CMD prevalence according to the GHQ-12 were considered.

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Objective: to investigate the frequency of exclusive breastfeeding, early introduction of other foods and association with prevalence of low weight in Brazilian children.

Methods: we analyzed records of children under 6 months of age held on the Food and Nutrition Surveillance System for the year 2015; associations were investigated through Poisson Regression.

Results: we found prevalence of 56.

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Introduction: In Brazil, the Food and Nutrition Surveillance System (Sistema de Vigilância Alimentar e Nutricional - SISVAN) provides continuous data on the nutritional status and food intake of the population user of primary health care to elaborate actions, programs, and policies.

Objective: This article describes the percentage of registration in the system, percentage of use, and coverage of food intake monitoring between 2008 and 2013.

Methods: This is an ecological study that characterizes the registered population according to federation units, macro-regions, and/or life stages.

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Case Report: A four-year-old girl presented with fever and a painful limp in the left hip. Pain characteristics and anemia detected in the blood analyses were the first warning signs that the hip process was not standard. Although the primary suspicion was of septic arthritis, a CT scan of the abdomen revealed an adrenal neuroblastoma.

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The study aimed to identify factors associated with the introduction of inappropriate complementary feeding in the first year of life in children living in municipalities (counties) with low socioeconomic statusl. This was a cross-sectional multicenter study in 1,567 children 12 to 59 months of age in 48 municipalities participating in the Brazil Without Poverty plan in the South of Brazil. A structured questionnaire was applied to the children's parents to obtain socio-demographic information and the age at which inappropriate complementary foods were introduced for the first time in complementary feeding.

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This study aims to describe and analyze nationwide coverage of the assessment of nutritional status in the user population of public health services recorded in Brazil's Online Food and Nutritional Surveillance System SISVAN) from 2008 to 2013. This was an ecological study of secondary data from information systems. The indicators were: percentages of registration in and utilization of the system; total coverage and coverage of data from the Bolsa Família Program, corrected according to the user population of the Brazilian Unified National Health System SUS) and described according to the states of Brazil and Federal District, major geographic regions, and/or life cycle phases.

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Non-communicable diseases, including cardiovascular diseases, are responsible for over 70% of deaths in Brazil. Currently, over 25% of Brazilian adults are diagnosed as hypertensive; overall, current dietary sodium intake in Brazil (4700 mg/person) is over twice the international recommendations, and 70-90% of adolescents and adults consume excessive sodium. National sodium reduction strategies consider the main dietary sources of sodium to be added salt to foods, foods consumed outside of the household, and sodium in processed foods.

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The present study investigated the factors associated with anemia and micronutrient deficiencies in a cross-sectional analysis conducted with 150 children aged 11 to 14 months attending at basic health centers in Rio Branco, Acre. Venous blood samples were obtained to assess the occurrence of anemia and deficiencies of iron (ID), vitamin A (VAD), and B12 (VB12D). Multiple Poisson regression models were used to identify factors associated with anemia.

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Objective: This study aimed to assess the nutritional status of vitamin A and associated factors in children assisted in Primary Care Health in Goiânia, Goiás, Brazil.

Methods: This is a cross-sectional study with a sample of 228 children 12 to 16 months of age. The nutritional status of vitamin A was assessed by serum retinol concentration, determined by high performance liquid chromatography.

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