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3 results on '"Shana G da Silva"'

1. Population-level seropositivity trend for SARS-Cov-2 in Rio Grande do Sul, Brazil

Author

Aluísio J D Barros, Cesar G Victora, Ana M B Menezes, Bernardo L Horta, Fernando C Barros, Fernando P Hartwig, Gabriel D Victora, Luis Paulo Vidaletti, Mariângela F Silveira, Marilia A Mesenburg, Nadège Jacques, Cláudio J Struchiner, Flávia Roberta Brust, Marinel M Dall’Agnol, Ana Paula Longaray Delamare, Carlos Henrique R François, Maria Letícia R Ikeda, Débora C P Pellegrini, Cézane Priscila Reuter, Shana G da Silva, Odir A Dellagostin, and Pedro C Hallal

Subjects
COVID-19, epidemiology, Seroepidemiologic Studies, Immunity, Herd, Socioeconomic Factors, Health Surveys, Public aspects of medicine, RA1-1270
Abstract

ABSTRACT OBJECTIVE To describe the evolution of seropositivity in the State of Rio Grande do Sul, Brazil, through 10 consecutive surveys conducted between April 2020 and April 2021. METHODS Nine cities covering all regions of the State were studied, 500 households in each city. One resident in each household was randomly selected for testing. In survey rounds 1–8 we used the rapid WONDFO SARS-CoV-2 Antibody Test (Wondfo Biotech Co., Guangzhou, China). In rounds 9–10, we used a direct ELISA test that identifies IgG to the viral S protein (S-UFRJ). In terms of social distancing, individuals were asked three questions, from which we generated an exposure score using principal components analysis. RESULTS Antibody prevalence in early April 2020 was 0.07%, increasing to 10.0% in February 2021, and to 18.2% in April 2021. In round 10, self-reported whites showed the lowest seroprevalence (17.3%), while indigenous individuals presented the highest (44.4%). Seropositivity increased by 40% when comparing the most with the least exposed. CONCLUSIONS The proportion of the population already infected by SARS-Cov-2 in the state is still far from any perspective of herd immunity and the infection affects population groups in very different levels.

Published
2021
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2. Conhecimento de adultos sobre o papel da atividade física na prevenção e tratamento de diabetes e hipertensão: estudo de base populacional no Sul do Brasil Public knowledge on the role of physical activity in the prevention and treatment of diabetes and hypertension: a population-based study in southern Brazil

Author

Alan G. Knuth, Renata M. Bielemann, Shana G. da Silva, Thiago T. Borges, Giovâni F. Del Duca, Marina M. Kremer, Pedro C. Hallal, Airton J. Rombaldi, and Mario R. Azevedo

Subjects
Hipertensão Arterial, lcsh:Public aspects of medicine, Hypertension, lcsh:R, Diabetes Mellitus, lcsh:Medicine, lcsh:RA1-1270, Motor Activity, Atividade Motora
Abstract

O objetivo deste estudo foi avaliar o conhecimento dos adultos de Pelotas, Sul do Brasil, sobre o papel da atividade física na prevenção e tratamento de diabetes e hipertensão arterial, e os fatores associados aos conhecimentos. Foi realizado um estudo transversal de base populacional, com amostragem por conglomerados, incluindo 972 indivíduos de 20 a 69 anos. O conhecimento dos efeitos da atividade física na prevenção e tratamento foi maior para a hipertensão (82%) do que para diabetes (47,2%). Para a prevenção de diabetes maiores conhecimentos se associaram ao sexo feminino (RP = 1,16; IC95%: 1,03-1,31), e no tratamento além destes, indivíduos ativos, obesos e de elevado nível econômico, tiveram maior conhecimento. Na prevenção da hipertensão, elevado conhecimento associou-se ao maior nível econômico (RP = 1,23; IC95%: 1,11-1,36). Quanto ao tratamento, mulheres, indivíduos ativos e obesos apresentaram maior conhecimento. Em síntese, o conhecimento sobre o papel da atividade física no tratamento de diabetes e hipertensão é maior, em comparação à prevenção; tal achado merece destaque, pois a capacidade de prevenção da atividade física não parece estar tão bem difundida em termos populacionais.The aim of this study was to evaluate public knowledge on the role of physical activity in the prevention and treatment of diabetes and hypertension, and the factors associated with such knowledge. A population-based cross-sectional study was conducted in Pelotas, southern Brazil, including 972 adults aged 20 to 69 years, selected with a clustering protocol. Knowledge on the preventive and curative benefits of physical activity was higher for hypertension (87.2%) than for diabetes (47.2%). Women were more knowledgeable on the role of physical activity in preventing diabetes (PR: 1.16; 95%CI: 1.03-1.31). In terms of treatment, greater knowledge was associated with female gender, current physical activity, obesity, subjects, and higher socioeconomic status. For prevention of hypertension, greater knowledge was observed in individuals with higher socioeconomic status (PR: 1.23; 95%CI: 1.11-1.36). For treatment of hypertension, physically active and obese subjects showed greater knowledge. Subjects were generally more knowledgeable on the curative role of physical activity than on its preventive benefits. Public health efforts should aim to raise public awareness on the preventive effects of physical activity against diabetes, hypertension, and other chronic non-communicable diseases.

Published
2009

3. [Public knowledge on the role of physical activity in the prevention and treatment of diabetes and hypertension: a population-based study in southern Brazil]

Author

Alan G, Knuth, Renata M, Bielemann, Shana G da, Silva, Thiago T, Borges, Giovâni F, Del Duca, Marina M, Kremer, Pedro C, Hallal, Airton J, Rombaldi, and Mario R, Azevedo

Subjects
Adult, Male, Health Knowledge, Attitudes, Practice, Urban Population, Health Promotion, Middle Aged, Motor Activity, Body Mass Index, Young Adult, Cross-Sectional Studies, Leisure Activities, Sex Factors, Socioeconomic Factors, Hypertension, Diabetes Mellitus, Humans, Female, Obesity, Exercise, Brazil
Abstract

The aim of this study was to evaluate public knowledge on the role of physical activity in the prevention and treatment of diabetes and hypertension, and the factors associated with such knowledge. A population-based cross-sectional study was conducted in Pelotas, southern Brazil, including 972 adults aged 20 to 69 years, selected with a clustering protocol. Knowledge on the preventive and curative benefits of physical activity was higher for hypertension (87.2%) than for diabetes (47.2%). Women were more knowledgeable on the role of physical activity in preventing diabetes (PR: 1.16; 95%CI: 1.03-1.31). In terms of treatment, greater knowledge was associated with female gender, current physical activity, obesity, subjects, and higher socioeconomic status. For prevention of hypertension, greater knowledge was observed in individuals with higher socioeconomic status (PR: 1.23; 95%CI: 1.11-1.36). For treatment of hypertension, physically active and obese subjects showed greater knowledge. Subjects were generally more knowledgeable on the curative role of physical activity than on its preventive benefits. Public health efforts should aim to raise public awareness on the preventive effects of physical activity against diabetes, hypertension, and other chronic non-communicable diseases.

Published
2008

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