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1.
Seroprevalence of SARS-CoV-2 antibodies in schoolchildren in the city of São Paulo, 2020
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Kamioka, Gabriela Akemi
; Madalosso, Geraldine
; Albuquerque, José Olimpio Moura de
; Costa, Selma Anequini
; Ferreira, Paula Bisordi
; Sato, Ana Paula Sayuri
; Glasser, Paula Regina
; Pino, Francisco Alberto
; Burihan, Patrícia Carla Piragibe Ramos
; Carvalho, Ana Carolina Aguiar de
; Amorim, Ana Beatriz Pagliaro
; Cavazzana, Cinthya Luzia
; Aires, Caroline Cotrim
; Kataoka, Ana Paula Arruda Geraldes
; Savani, Elisa San Martin Mouriz
; Bessa, Thirsa Alvares Franco
; Aguiar, Breno Souza de
; Failla, Marcelo Antunes
; Santos, Edson Aparecido dos
; Brito, Edjane Maria Torreão
; Santos, Maria Cristina Honório dos
; Caldeira, Luiz Artur Vieira
; Silva, Solange Maria Saboia e
; Zamarco, Luiz Carlos
; Fonseca, Sandra Maria Sabino
; Lima, Marcia Maria de Cerqueira
; Marques, Ivanilda Argenau
; Mauro, Athenê Maria de Marco França
; Masi, Eduardo de
.
RESUMO OBJETIVO Estimar a soroprevalência de anticorpos do vírus SARS-CoV-2 em escolares de quatro a 14 anos de idade residentes no município de São Paulo, segundo variáveis clínicas, demográficas, epidemiológicas e sociais, durante o período de fechamento das escolas como medida de controle da covid-19. MÉTODOS Realizou-se um inquérito sorológico em setembro de 2020 com amostra aleatória estratificada por tipo de rede de ensino (pública municipal, pública estadual e privada). Foi coletada amostra de sangue venoso utilizando-se o teste de imunoensaio de fluxo lateral da fabricante Wondfo para detecção de anticorpos totais contra o vírus SARS-CoV-2. Aplicaram-se questionários semiestruturados para o levantamento de dados clínicos, demográficos, sociais e epidemiológicos. RESULTADOS A soroprevalência de anticorpos do vírus SARS-CoV-2 em escolares foi de 16,6% (IC95% 15,4–17,8). O estudo encontrou soroprevalências mais elevadas na rede pública municipal (18,5%; IC95% 16,6–20,6) e estadual (16,2%; IC95% 14,4–18,2) em relação à rede privada (11,7; IC95% 10,0–13,7) e entre escolares da raça/cor preta e parda (18,4%; IC95% 16,8–20,2) e no estrato social mais vulnerável (18,5%; IC95% 16,9–20,2). A pesquisa identificou menores soroprevalências nos escolares que relataram seguir as medidas recomendadas de proteção contra a covid-19. CONCLUSÃO A soroprevalência de anticorpos contra o vírus SARS-CoV-2 atinge principalmente os escolares socialmente mais vulneráveis. Este estudo pode contribuir para embasar políticas públicas que reforcem a importância da suspensão das aulas presenciais e da necessidade de estratégias de medidas de proteção e acompanhamento do status sorológico daqueles que ainda não foram contemplados no calendário vacinal.
ABSTRACT OBJECTIVE To estimate seroprevalence of SARS-CoV-2 antibodies in schoolchildren aged 4 to 14 years living in the city of São Paulo, according to clinical, demographic, epidemiological, and social variables, during the school closure period as a measure against covid-19 spread. METHODS A serological survey was made in September 2020 with a random sample stratified by school system (municipal public, state public and private) type. A venous blood sample was collected using the Wondfo SARS-CoV-2 Antibody Test (lateral flow method) for detection of total SARS-CoV-2 virus antibodies. Semi-structured questionnaires were applied to collect clinical, demographic, social, and epidemiological data. RESULTS Seroprevalence of SARS-CoV-2 antibodies in schoolchildren was of 16.6% (95%CI 15.4–17.8). The study found higher seroprevalence in the municipal (18.5%; 95%CI 16.6–20.6) and state (16.2%; 95%CI 14.4–18.2) public school systems compared to the private school system (11.7; 95%CI 10.0–13.7), among black and brown students (18.4%; 95%CI 16.8–20.2) and in the most vulnerable social stratum (18.5 %;95%CI 16.9–20.2). Lower seroprevalence was identified in schoolchildren who reported following the recommended protective measures against covid-19. CONCLUSION Seroprevalence of SARS-CoV-2 antibodies is found mainly in the most socially vulnerable schoolchildren. This study can contribute to support public policies that reinforce the importance of suspending face-to-face classes and developing strategies aimed at protective measures and monitoring of the serological status of those who have not yet been included in the vaccination schedule.
2.
Análise da relação entre eixos estruturantes na constituição do psiquismo e emergência de um lugar de enunciação de bebês com e sem atraso na aquisição da linguagem
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RESUMO Objetivo Analisar a correlação entre os eixos estruturantes do psiquismo no roteiro IRDI (Indicadores de Referência ao Desenvolvimento Infantil) e na aquisição da linguagem por meio dos Sinais Enunciativos de Aquisição da Linguagem (SEAL) quanto ao papel do bebê e da mãe nas protoconversações iniciais. Método A amostra contou com 77 bebês, que concluíram todas as avaliações no IRDI e no SEAL. Os resultados obtidos por meio desses dois instrumentos foram analisados por meio do coeficiente de Spearman e do teste de U de Mann-Whitney, considerando valor de p<= 0,05. Resultados Identificou-se correlação significativa entre as alterações nos indicadores relacionados à função materna (suposição de sujeito, estabelecimento da demanda e alternância presença/ausência) e as alterações nos sinais enunciativos dos bebês e das mães. Não houve correlação significativa na relação isolada do eixo função paterna e a presença de atraso na aquisição da linguagem. Conclusão Houve correlação significativa entre os eixos de função materna do roteiro IRDI e risco à linguagem pelo SEAL.
ABSTRACT Purpose To analyze the correlation between the psychism structuring pillar in the RIID (Reference Indicators of Infant Development) script and language acquisition through Enunciative Signs of Language Acquisition (ESLA) as to the role of the baby and the mother in early protoconversations. Methods The sample included 77 infants, who completed all the RIID and ESLA assessments. The results obtained from these two instruments were analyzed using Spearman's coefficient and the Mann-Whitney U test, considering a p-value < 0.05. Results A significant correlation was identified between changes in the indicators related to the maternal function (assumption of subject, establishment of demand and presence/absence alternation) and changes in the enunciative signals of babies and mothers. There was no significant correlation in the isolated relation of the paternal function pillar and the presence of delayed language acquisition. Conclusion There was a significant correlation between the pillars of maternal function of the RIID script and language risk by ESLA.
3.
National Vaccine Coverage Survey 2020: methods and operational aspects
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Barata, Rita Barradas
; França, Ana Paula
; Guibu, Ione Aquemi
; Vasconcellos, Maurício Teixeira Leite de
; Moraes, José Cássio de
; Teixeira, Maria da Gloria Lima Cruz
; Domingues, Carla Magda Alan
; Borges, Maria Fernanda de Souza Oliveira
; de Azevedo, Roberta Nogueira Calandrini
; de Oliveira, Consuelo Silva
; Oliveira, Andrea de Nazaré Marvão
; Canales, Ivy Thereza
; Nascimento, Valdir
; Queiroz, Rejane Christine de Souza
; Lima, Luísa Helena de Oliveira
; Ramos Jr, Alberto Novaes
; Barbosa, Jaqueline Caracas
; Mirabal, Isabelle Ribeiro Barbosa
; Meira, Meiruska
; Antunes, Maria Bernadete de Cerqueira
; Teixeira, Maria Denise de Castro
; Gurgel, Ricardo Queiroz
; de Carvalho, Martha Suely Itaparica
; Cesar, Tayñana
; Maciel, Ethel Leonor Noia
; da Gama, Silvana Granado Nogueira
; Luhm, Karin Regina
; Boing, Antônio Fernando
; Mengue, Sotero Serrate
; de Oliveira, Sandra Maria do Valle Leone
; Lima, Jaqueline Costa
; Teles, Sheila Araújo
; Caetano, Karlla Antonieta Amorim
; de Araújo, Wildo Navegantes
.
RESUMO Objetivo: Inquérito nacional de cobertura vacinal aos 12 e 24 meses de idade foi realizado para investigar as quedas nas coberturas a partir de 2016. Métodos: Amostra de 37.836 nascidos vivos das coortes de 2017 e 2018 residentes nas capitais, Distrito Federal (DF) e 12 cidades com mais de 100 mil habitantes, acompanhados nos primeiros 24 meses por registros nas cadernetas de vacinação. Setores censitários foram estratificados segundo condições socioeconômicas, e o mesmo número de crianças foi incluído para cada estrato. Calcularem-se coberturas vacinais de cada vacina e coberturas completas aos 12 e 24 meses, doses aplicadas, válidas e oportunas. Fatores familiares, maternos e da criança associados à cobertura foram pesquisados. Os motivos para não vacinar analisados foram: contraindicações médicas, dificuldades de acesso, problemas no funcionamento do programa e hesitação vacinal. Resultados: Os resultados preliminares mostram que menos de 1% das crianças não foram vacinadas, as coberturas pelo esquema completo são menores que 75% em todas as capitais e no DF, as vacinas com mais de uma dose perdem cobertura progressivamente, há diferenças entre os estratos socioeconômicos, favoráveis aos estratos mais altos em algumas cidades e aos estratos mais baixos em outras. Conclusão: Houve realmente redução da cobertura vacinal em todas as capitais e no DF para as crianças nascidas em 2017 e 2018, denotando piora na execução do Programa Nacional de Imunizações durante os anos de 2017 a 2019. O inquérito realizado não mensurou os impactos da pandemia de COVID-19 que podem ter reduzido ainda mais as coberturas vacinais.
ABSTRACT Objective: The national vaccination coverage survey on full vaccination at 12 and 24 months of age was carried out to investigate drops in coverage as of 2016. Methods: A sample of 37,836 live births from the 2017 or 2018 cohorts living in capital cities, the Federal District, and 12 inner cities with 100 thousand inhabitants were followed for the first 24 months through vaccine record cards. Census tracts stratified according to socioeconomic levels had the same number of children included in each stratum. Coverage for each vaccine, full vaccination at 12 and 24 months and number of doses administered, valid and timely, were calculated. Family, maternal and child factors associated with coverage were surveyed. The reasons for not vaccinating analyzed were: medical contraindications, access difficulties, problems with the program, and vaccine hesitancy. Results: Preliminary results showed that less than 1% of children were not vaccinated, full coverage was less than 75% at all capitals and the Federal District, vaccines requiring more than one dose progressively lost coverage, and there were inequalities among socioeconomic strata, favorable to the highest level in some cities and to the lowest in others. Conclusion: There was an actual reduction in full vaccination in all capitals and the Federal District for children born in 2017 and 2018, showing a deteriorating implementation of the National Immunization Program from 2017 to 2019. The survey did not measure the impacts of the COVID-19 pandemic, which may have further reduced vaccination coverage.
4.
Relação entre sinais enunciativos de aquisição da linguagem e a avaliação de linguagem pela escala Bayley III aos 24 meses
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Oliveira, Luciéle Dias
; Moraes, Anaelena Bragança de
; Nunes, Sabrina Felin
; Costa, Inaê
; Souza, Ana Paula Ramos de
.
ABSTRACT Purpose To analyze the correlation between the results obtained on the SEAL and the Bayley III Scale and compare babies with and without delay in language acquisition at 24 months concerning the performance obtained by them and their mothers on the SEAL from 3 to 24 months. Methods The SEAL collection consists of 15-minute footages of 45 babies aged from 3 to 24 months old in interaction with their mothers, who were assessed by two trained speech therapists for the use of the SEAL. At 24 months, the 45 babies were assessed using the Bayley III Scale and the item language was selected to classify them with and without delay. These results were statistically analyzed through a Pearson’s correlation test and a Fisher's exact test. Results In average, eighteen signs of typical development as we obtained, while a mean of 12 delay signs were found. By comparing the presence and absence of signs between the groups with and without delay in language acquisition, eight signs from the baby and one from the mother differed statistically in the sample. The analysis using the SEAL for cases of delay showed that the maternal factor was as important as the infant factor to understand the babies’ language functioning. Conclusion There was a significant correlation between the SEAL performance from 3 to 24 months and the language outcome at 24 months assessed by the Bayley III Scale in this sample.
RESUMO Objetivo Analisar a correlação entre resultados obtidos no Sinais Enunciativos de Aquisição da Linguagem (SEAL) e na Escala Bayley III e comparar bebês com e sem atraso na aquisição da linguagem aos 24 meses no desempenho obtido por ele e sua mãe no SEAL dos 3 aos 24 meses. Método A coleta do SEAL constou de filmagens de 45 bebês, realizadas nas faixas etárias de 3 a 24 meses em interação com suas mães, com duração de 15 minutos, que foram avaliados por duas fonoaudiólogas treinadas no uso do SEAL. Aos 24 meses, os 45 bebês foram avaliados pela Escala Bayley III e selecionado o item linguagem para classificá-los com e sem atraso. Sobre tais resultados realizaram-se as análises estatísticas com o teste de correlação de Pearson e o teste exato de Fisher. Resultados Obtiveram-se as médias de sinais no desenvolvimento típico que foi 18 sinais e, em casos de atraso, a média foi de 12 sinais. Na comparação da relação de presença e ausência dos sinais entre os grupos com e sem atraso na aquisição da linguagem, oito sinais do bebê e um da mãe diferiram estatisticamente na amostra. O fator materno apresentou-se tão importante quanto o infantil na compreensão do funcionamento de linguagem dos bebês na análise realizada com o SEAL nos casos de atraso. Conclusão Houve correlação significativa entre o desempenho no SEAL entre 3 e 24 meses e o desfecho de linguagem aos 24 meses avaliado pela Escala Bayley III nesta amostra.
5.
Seroprevalence of SARS-CoV-2 antibodies in schoolchildren in the city of São Paulo, 2020
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Kamioka, Gabriela Akemi
; Madalosso, Geraldine
; Albuquerque, José Olimpio Moura de
; Costa, Selma Anequini
; Ferreira, Paula Bisordi
; Sato, Ana Paula Sayuri
; Glasser, Paula Regina
; Pino, Francisco Alberto
; Burihan, Patrícia Carla Piragibe Ramos
; Carvalho, Ana Carolina Aguiar de
; Amorim, Ana Beatriz Pagliaro
; Cavazzana, Cinthya Luzia
; Aires, Caroline Cotrim
; Kataoka, Ana Paula Arruda Geraldes
; Savani, Elisa San Martin Mouriz
; Bessa, Thirsa Alvares Franco
; Aguiar, Breno Souza de
; Failla, Marcelo Antunes
; Santos, Edson Aparecido dos
; Brito, Edjane Maria Torreão
; Santos, Maria Cristina Honório dos
; Caldeira, Luiz Artur Vieira
; Silva, Solange Maria Saboia e
; Zamarco, Luiz Carlos
; Fonseca, Sandra Maria Sabino
; Lima, Marcia Maria de Cerqueira
; Marques, Ivanilda Argenau
; Mauro, Athenê Maria de Marco França
; Masi, Eduardo de
.
ABSTRACT OBJECTIVE To estimate seroprevalence of SARS-CoV-2 antibodies in schoolchildren aged 4 to 14 years living in the city of São Paulo, according to clinical, demographic, epidemiological, and social variables, during the school closure period as a measure against covid-19 spread. METHODS A serological survey was made in September 2020 with a random sample stratified by school system (municipal public, state public and private) type. A venous blood sample was collected using the Wondfo SARS-CoV-2 Antibody Test (lateral flow method) for detection of total SARS-CoV-2 virus antibodies. Semi-structured questionnaires were applied to collect clinical, demographic, social, and epidemiological data. RESULTS Seroprevalence of SARS-CoV-2 antibodies in schoolchildren was of 16.6% (95%CI 15.4–17.8). The study found higher seroprevalence in the municipal (18.5%; 95%CI 16.6–20.6) and state (16.2%; 95%CI 14.4–18.2) public school systems compared to the private school system (11.7; 95%CI 10.0–13.7), among black and brown students (18.4%; 95%CI 16.8–20.2) and in the most vulnerable social stratum (18.5 %;95%CI 16.9–20.2). Lower seroprevalence was identified in schoolchildren who reported following the recommended protective measures against covid-19. CONCLUSION Seroprevalence of SARS-CoV-2 antibodies is found mainly in the most socially vulnerable schoolchildren. This study can contribute to support public policies that reinforce the importance of suspending face-to-face classes and developing strategies aimed at protective measures and monitoring of the serological status of those who have not yet been included in the vaccination schedule.
RESUMO OBJETIVO Estimar a soroprevalência de anticorpos do vírus SARS-CoV-2 em escolares de quatro a 14 anos de idade residentes no município de São Paulo, segundo variáveis clínicas, demográficas, epidemiológicas e sociais, durante o período de fechamento das escolas como medida de controle da covid-19. MÉTODOS Realizou-se um inquérito sorológico em setembro de 2020 com amostra aleatória estratificada por tipo de rede de ensino (pública municipal, pública estadual e privada). Foi coletada amostra de sangue venoso utilizando-se o teste de imunoensaio de fluxo lateral da fabricante Wondfo para detecção de anticorpos totais contra o vírus SARS-CoV-2. Aplicaram-se questionários semiestruturados para o levantamento de dados clínicos, demográficos, sociais e epidemiológicos. RESULTADOS A soroprevalência de anticorpos do vírus SARS-CoV-2 em escolares foi de 16,6% (IC95% 15,4–17,8). O estudo encontrou soroprevalências mais elevadas na rede pública municipal (18,5%; IC95% 16,6–20,6) e estadual (16,2%; IC95% 14,4–18,2) em relação à rede privada (11,7; IC95% 10,0–13,7) e entre escolares da raça/cor preta e parda (18,4%; IC95% 16,8–20,2) e no estrato social mais vulnerável (18,5%; IC95% 16,9–20,2). A pesquisa identificou menores soroprevalências nos escolares que relataram seguir as medidas recomendadas de proteção contra a covid-19. CONCLUSÃO A soroprevalência de anticorpos contra o vírus SARS-CoV-2 atinge principalmente os escolares socialmente mais vulneráveis. Este estudo pode contribuir para embasar políticas públicas que reforcem a importância da suspensão das aulas presenciais e da necessidade de estratégias de medidas de proteção e acompanhamento do status sorológico daqueles que ainda não foram contemplados no calendário vacinal.
6.
National Vaccine Coverage Survey 2020: methods and operational aspects
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Barata, Rita Barradas
; França, Ana Paula
; Guibu, Ione Aquemi
; Vasconcellos, Maurício Teixeira Leite de
; Moraes, José Cássio de
; Teixeira, Maria da Gloria Lima Cruz
; Domingues, Carla Magda Alan
; Borges, Maria Fernanda de Souza Oliveira
; de Azevedo, Roberta Nogueira Calandrini
; de Oliveira, Consuelo Silva
; Oliveira, Andrea de Nazaré Marvão
; Canales, Ivy Thereza
; Nascimento, Valdir
; Queiroz, Rejane Christine de Souza
; Lima, Luísa Helena de Oliveira
; Ramos Jr, Alberto Novaes
; Barbosa, Jaqueline Caracas
; Mirabal, Isabelle Ribeiro Barbosa
; Meira, Meiruska
; Antunes, Maria Bernadete de Cerqueira
; Teixeira, Maria Denise de Castro
; Gurgel, Ricardo Queiroz
; de Carvalho, Martha Suely Itaparica
; Cesar, Tayñana
; Maciel, Ethel Leonor Noia
; da Gama, Silvana Granado Nogueira
; Luhm, Karin Regina
; Boing, Antônio Fernando
; Mengue, Sotero Serrate
; de Oliveira, Sandra Maria do Valle Leone
; Lima, Jaqueline Costa
; Teles, Sheila Araújo
; Caetano, Karlla Antonieta Amorim
; de Araújo, Wildo Navegantes
.
ABSTRACT Objective: The national vaccination coverage survey on full vaccination at 12 and 24 months of age was carried out to investigate drops in coverage as of 2016. Methods: A sample of 37,836 live births from the 2017 or 2018 cohorts living in capital cities, the Federal District, and 12 inner cities with 100 thousand inhabitants were followed for the first 24 months through vaccine record cards. Census tracts stratified according to socioeconomic levels had the same number of children included in each stratum. Coverage for each vaccine, full vaccination at 12 and 24 months and number of doses administered, valid and timely, were calculated. Family, maternal and child factors associated with coverage were surveyed. The reasons for not vaccinating analyzed were: medical contraindications, access difficulties, problems with the program, and vaccine hesitancy. Results: Preliminary results showed that less than 1% of children were not vaccinated, full coverage was less than 75% at all capitals and the Federal District, vaccines requiring more than one dose progressively lost coverage, and there were inequalities among socioeconomic strata, favorable to the highest level in some cities and to the lowest in others. Conclusion: There was an actual reduction in full vaccination in all capitals and the Federal District for children born in 2017 and 2018, showing a deteriorating implementation of the National Immunization Program from 2017 to 2019. The survey did not measure the impacts of the COVID-19 pandemic, which may have further reduced vaccination coverage.
RESUMO Objetivo: Inquérito nacional de cobertura vacinal aos 12 e 24 meses de idade foi realizado para investigar as quedas nas coberturas a partir de 2016. Métodos: Amostra de 37.836 nascidos vivos das coortes de 2017 e 2018 residentes nas capitais, Distrito Federal (DF) e 12 cidades com mais de 100 mil habitantes, acompanhados nos primeiros 24 meses por registros nas cadernetas de vacinação. Setores censitários foram estratificados segundo condições socioeconômicas, e o mesmo número de crianças foi incluído para cada estrato. Calcularem-se coberturas vacinais de cada vacina e coberturas completas aos 12 e 24 meses, doses aplicadas, válidas e oportunas. Fatores familiares, maternos e da criança associados à cobertura foram pesquisados. Os motivos para não vacinar analisados foram: contraindicações médicas, dificuldades de acesso, problemas no funcionamento do programa e hesitação vacinal. Resultados: Os resultados preliminares mostram que menos de 1% das crianças não foram vacinadas, as coberturas pelo esquema completo são menores que 75% em todas as capitais e no DF, as vacinas com mais de uma dose perdem cobertura progressivamente, há diferenças entre os estratos socioeconômicos, favoráveis aos estratos mais altos em algumas cidades e aos estratos mais baixos em outras. Conclusão: Houve realmente redução da cobertura vacinal em todas as capitais e no DF para as crianças nascidas em 2017 e 2018, denotando piora na execução do Programa Nacional de Imunizações durante os anos de 2017 a 2019. O inquérito realizado não mensurou os impactos da pandemia de COVID-19 que podem ter reduzido ainda mais as coberturas vacinais.
7.
Optimum plot size and number of replications for experiments with the chickpea
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Magalhães, Jailson Ramos
; Azevedo, Alcinei Mistico
; Valadares, Nermy Ribeiro
; Fernandes, Ana Clara Gonçalves
; Alves, Rayane Aguiar
; Freitas, Igor Costa de
; Gomes, Luan Souza de Paula
; Costa, Cândido Alves da
.
ABSTRACT In agricultural experimentation, use of the optimum plot size is an important way of increasing experimental precision; however, studies of this type are scarce for the chickpea, a legume that has been conquering both the market and consumers throughout the world. The aim of this study, therefore, was to determine the optimum plot size for evaluating experiments with the chickpea, in scenarios comprising combinations of the number of treatments, number of replications and levels of precision. Two blank experiments were carried out, comprising eight crop rows, 7 m in length, at a spacing of 50 cm between rows and 10 cm between plants; the six central rows were evaluated, giving a total of 60 plants per row. The index of soil heterogeneity was determined, and the optimum plot size was estimated using the Hatheway method in scenarios formed by a combination of i treatments (i = 4, 8, 12 and 16), r replications (r = 3, 4, 5, 6, 7 and 8) and levels of precision (LSD = 25%, 30% and 40%). The index of soil heterogeneity was greater than 0.7 for each of the variables under evaluation. The Hatheway method makes it possible to estimate different plot sizes based on the conditions and limitations of the experimental area. In experiments with the chickpea including 4 to 16 treatments, 25% LSD and six replications, plots of 25 basic units are sufficient to identify significant differences between the mean values of the treatments with a probability of 5%.
RESUMO Na experimentação agrícola, a utilização do tamanho ótimo de parcela é uma estratégia importante, para aumentar a precisão experimental, e trabalhos desta natureza são escassos para a cultura do grão-de-bico, leguminosa que vem conquistando o mercado e consumidores em todo o mundo. Assim, o objetivo deste trabalho foi determinar o tamanho ótimo de parcela, para avaliar experimentos com a cultura do grão-de-bico, em cenários formados por combinações de números de tratamentos, números de repetições e níveis de precisão. Dois experimentos em branco foram realizados, compostos por oito linhas de cultivo, de 7 m de comprimento, espaçadas em 50 cm entre linhas e 10 cm entre plantas; foram avaliadas as seis linhas centrais, totalizando 60 plantas por linha de cultivo. Foi determinado o índice de heterogeneidade do solo e o tamanho ótimo de parcela foi estimado por meio do método de Hatheway, em cenários formados pelas combinações de i tratamentos (i = 4, 8, 12 e 16), r repetições (r = 3, 4, 5, 6, 7 e 8) e níveis de precisão (DMS = 25%, 30% e 40%). O índice de heterogeneidade do solo foi superior a 0,7 para todas as variáveis avaliadas. O método de Hatheway possibilita estimar diferentes tamanhos de parcelas, de acordo com as condições e limitações da área experimental. Em experimentos com o grão-de-bico, com 4 a 16 tratamentos, DMS de 25% e seis repetições, as parcelas de 25 unidades básicas são suficientes para identificar, com probabilidade de 5%, diferenças significativas entre as médias dos tratamentos.
8.
Prevalence and functional status of children with complex chronic conditions in Brazilian PICUs during the COVID-19 pandemic
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Colleti Junior, José
; Prata-Barbosa, Arnaldo
; Lima-Setta, Fernanda
; Araujo, Orlei Ribeiro de
; Horigoshi, Nelson K.
; Cesar, Regina Grigolli
; Souza, Andreia Aparecida Freitas
; Foronda, Flávia Andrea Krepel
; Almeida, Carlos Gustavo de
; Torreão, Lara de Araujo
; Crestani, Francielly
; Carlotti, Ana Paula de Carvalho Panzeri
; Garcia, Pedro Celiny Ramos
.
Abstract Objective The proportion of children with complex chronic conditions is increasing in PICUs around the world. We determined the prevalence and functional status of children with complex chronic conditions in Brazilian PICUs during the COVID-19 pandemic. Methods The authors conducted a point prevalence cross-sectional study among fifteen Brazilian PICUs during the COVID-19 pandemic. The authors enrolled all children admitted to the participating PICUs with complex chronic conditions on three different days, four weeks apart, starting on April 4th, 2020. The authors recorded the patient's characteristics and functional status at admission and discharge days. Results During the 3 study days from March to June 2020, the authors enrolled 248 patients admitted to the 15 PICUs; 148 had CCC (prevalence of 59.7%). Patients had a median of 1 acute diagnosis and 2 chronic diagnoses. The use of resources/devices was extensive. The main mode of respiratory support was conventional mechanical ventilation. Most patients had a peripherally inserted central catheter (63.1%), followed by a central venous line (52.5%), and 33.3% had gastrostomy or/and tracheostomy. The functional status score was significantly better at discharge compared to admission day due to the respiratory status improvement. Conclusions The prevalence of children with CCC admitted to the Brazilian PICUs represented 59.7% of patients during the COVID-19 pandemic. The functional status of these children improved during hospitalization, mainly due to the respiratory component.
9.
Validação de conteúdo e de construto de sinais enunciativos de aquisição da linguagem no segundo ano de vida
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Fattore, Isabela de Moraes
; Moraes, Anaelena Bragança de
; Crestani, Anelise Henrich
; Souza, Adriano Mendonça
; Souza, Ana Paula Ramos de
.
RESUMO Objetivo Analisar a validade de conteúdo e de construto de sinais enunciativos de aquisição da linguagem para crianças de 13 a 24 meses. Método Os sinais criados foram submetidos à avaliação de clareza e pertinência por seis juízes experts em aquisição da linguagem na perspectiva enunciativa. A partir do seu julgamento foi produzida uma versão experimental que foi aplicada na análise de vídeos de interações mãe-bebê/examinador, com duração de 15 minutos, de 77 díades mãe-bebê na faixa etária de 13 a 18 meses e 89 díades na faixa etária de 19 a 24 meses. A validação de fidedignidade e consistência interna foi realizada pela análise de 10% da mostra por dois juízes fonoaudiólogos. A validação do construto foi realiza pela análise fatorial efetivada sobre a amostra total. Os dados foram analisados no Statistica 9.1 e PASW 17.0. Resultados Todos os sinais foram considerados claros e pertinentes pelos juízes experts. A análise de fidedignidade apontou a concordância quase perfeita (0,8 ≤ Kappa ≥ 1,0) para a maior parte dos sinais. A consistência interna para a Fase 3 apresentou alpha=0,771 considerada alta e Fase 4 apresentou alpha=0,917 limítrofe a muita alta. A análise fatorial da fase 3 revelou 2 fatores, explicando 59,1% da variância total e a fase 4 revelou 1 fator, explicando 75,7%. Conclusão Observou-se validade de conteúdo e de construto para cinco dos doze sinais na Fase 3 e para todos sinais na fase 4.
ABSTRACT Purpose To analyze the content and construct validity of enunciative signs of language acquisition for children aged 13 to 24 months. Methods The signs created were subjected to an assessment of clarity and relevance by six expert judges in language acquisition from an enunciative perspective. Based on their judgment, an experimental version was produced that was applied to the analysis of videos of mother-baby / examiner interactions, lasting 15 minutes, of 77 mother-baby dyads aged 13 to 18 months and 89 dyads in the age range aged between 19 and 24 months. The validity of reliability and internal consistency was performed by analyzing 10% of the sample by two speech therapists. The construct validation was carried out by the factorial analysis carried out on the total sample. The data were analyzed in Statistica 9.1 and PASW 17.0. Results All signs were considered clear and relevant by the expert judges. The reliability analysis showed an almost perfect agreement (0.8 ≤ Kappa ≥ 1.0) for most signs. The internal consistency for Phase 3 showed alpha = 0.771 considered high and Phase 4 presented alpha = 0.917 bordering on very high. The factor analysis of phase 3 revealed 2 factors, explaining 59.1% of the total variance and phase 4 revealed 1 factor, explaining 75.7%. Conclusion Content and construct validity were observed for five of the twelve signs in Phase 3 and for all signs in Phase 4.
https://doi.org/10.1590/2317-1782/20202020252
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10.
O papel do fonoaudiólogo e o foco da intervenção no TEA
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Fernandes, Fernanda Dreux Miranda
; Amato, Cibelle Albuquerque de la Higuera
; Perissinoto, Jacy
; Lopes-Herrera, Simone Aparecida
; Souza, Ana Paula Ramos de
; Tamanaha, Ana Carina
; Montenegro, Ana Cristina de Albuquerque
; Segeren, Leticia
; Machado, Fernanda Prada
; Goulart, Bárbara Niegia Garcia de
; Molini-Avejonas, Daniela Regina
.
11.
Brazilian phonoaudiology telepractice before and during the COVID-19 pandemic
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Goulart, Bárbara Niegia Garcia de
; Lopes-Herrera, Simone Aparecida
; Amato, Cibelle Albuquerque de la Higuera
; Fernandes, Fernanda Dreux Miranda
; Perissinoto, Jacy
; Tamanaha, Ana Carina
; Souza, Ana Paula Ramos de
; Montenegro, Ana Cristina de Albuquerque
; Segeren, Leticia
; Machado, Fernanda Prada
; Molini-Avejonas, Daniela Regina
.
ABSTRACT Purpose: to analyze the use of digital resources by Brazilian phonoaudiologists before and during the period of the COVID-19 pandemic. Methods: cross-sectional study carried out with a representative sample of Brazilian phonoaudiologists, with at least one year of practical experience. An online questionnaire consisting of 28 questions divided into eight sections was prepared. Data were analyzed and are reported as absolute and relative frequency regarding the variables: respondent’s age, highest degree and years of experience; weekly working hours; region of the country; type of service and area of expertise; use of digital means before and during the pandemic and willingness to use the same kind of resource after the pandemic. Results: telehealth technologies were used by 90% of phonoaudiologists in Brazil since before the COVID-19 pandemic. A change in the profile of technologies used was observed: after the pandemic, videoconferences gained more use in contact with patients compared to the pre-pandemic period even though contact via mobile phone and instant messaging applications are the most used, both before and during the pandemic. Conclusion: the study's findings demonstrate that 90% of phonoaudiologists who answered the questionnaire in Brazil used and still make use of telehealth technologies to contact patients.
12.
Terapia com base em integração sensorial em um caso de Transtorno do Espectro Autista com seletividade alimentar
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Resumo Objetivo Analisar a relação entre seletividade alimentar e a disfunção do processamento sensorial em criança com Transtorno do Espectro Autista (TEA) e acompanhar sua evolução com abordagem terapêutica de intervenção sensorial. Método Trata-se de uma pesquisa qualitativa a partir de um estudo de caso, com amostra de conveniência de um menino de cinco anos com diagnóstico de TEA e seletividade alimentar, acompanhado durante um ano e cinco meses. Foi utilizado neste estudo de caso o Protocolo Perfil Sensorial – Questionário para os Pais – 3 a 10 anos e o roteiro sobre a alimentação. Resultados Foi identificada alteração significativa no Perfil Sensorial, principalmente nos sistemas que estão relacionados com a alimentação, confirmando as dificuldades sensoriais de crianças com TEA e sua interface com seletividade alimentar. O tratamento de terapia ocupacional com abordagem de integração sensorial obteve resultados favoráveis na aceitação dos alimentos e diminuição da seletividade. Conclusão Alterações no perfil sensorial estiveram relacionadas com a dificuldade alimentar, evidenciando que a seletividade no caso estudado tinha origem sensorial superada com terapia de integração sensorial.
Abstract Objective To analyze the relationship between food selectivity and sensory processing dysfunction in children with Autism Spectrum Disorder (ASD) as well as monitor their evolution with a therapeutic approach to sensory intervention. Method This is a qualitative research based on a case study, with a convenience sample of a five-year-old boy diagnosed with ASD and food selectivity, who was followed for one year and five months. In this case study, the Sensory Profile Protocol – Questionnaire for Parents – 3 to 10 years and the script on nutrition was used. Results A significant change in the Sensory Profile was identified, especially in systems that are related to food, confirming the sensory difficulties of children with ASD and its interface with food selectivity. The occupational therapy treatment with a sensory integration approach obtained favorable results in terms of food acceptance and decreased selectivity. Conclusion Changes in the sensory profile were related to eating difficulties, showing that the selectivity in the case studied had sensory origin, which was overcome with sensory integration therapy.
13.
Práticas de ressuscitação volêmica em unidades de terapia intensiva brasileiras: uma análise secundária do estudo Fluid-TRIPS
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Freitas, Flavio Geraldo Rezende de
; Hammond, Naomi
; Li, Yang
; Azevedo, Luciano Cesar Pontes de
; Cavalcanti, Alexandre Biasi
; Taniguchi, Leandro
; Gobatto, André
; Japiassú, André Miguel
; Bafi, Antonio Tonete
; Mazza, Bruno Franco
; Noritomi, Danilo Teixeira
; Dal-Pizzol, Felipe
; Bozza, Fernando
; Salluh, Jorge Ibrahin Figueira
; Westphal, Glauco Adrieno
; Soares, Márcio
; Assunção, Murillo Santucci César de
; Lisboa, Thiago
; Lobo, Suzana Margarete Ajeje
; Barbosa, Achilles Rohlfs
; Ventura, Adriana Fonseca
; Souza, Ailson Faria de
; Silva, Alexandre Francisco
; Toledo, Alexandre
; Reis, Aline
; Cembranel, Allan
; Rea Neto, Alvaro
; Gut, Ana Lúcia
; Justo, Ana Patricia Pierre
; Santos, Ana Paula
; Albuquerque, André Campos D. de
; Scazufka, André
; Rodrigues, Antonio Babo
; Fernandino, Bruno Bonaccorsi
; Silva, Bruno Goncalves
; Vidal, Bruno Sarno
; Pinheiro, Bruno Valle
; Pinto, Bruno Vilela Costa
; Feijo, Carlos Augusto Ramos
; Abreu Filho, Carlos de
; Bosso, Carlos Eduardo da Costa Nunes
; Moreira, Carlos Eduardo Nassif
; Ramos, Carlos Henrique Ferreira
; Tavares, Carmen
; Arantes, Cidamaiá
; Grion, Cintia
; Mendes, Ciro Leite
; Kmohan, Claudio
; Piras, Claudio
; Castro, Cristine Pilati Pileggi
; Lins, Cyntia
; Beraldo, Daniel
; Fontes, Daniel
; Boni, Daniela
; Castiglioni, Débora
; Paisani, Denise de Moraes
; Pedroso, Durval Ferreira Fonseca
; Mattos, Ederson Roberto
; Brito Sobrinho, Edgar de
; Troncoso, Edgar M. V.
; Rodrigues Filho, Edison Moraes
; Nogueira, Eduardo Enrico Ferrari
; Ferreira, Eduardo Leme
; Pacheco, Eduardo Souza
; Jodar, Euzebio
; Ferreira, Evandro L. A.
; Araujo, Fabiana Fernandes de
; Trevisol, Fabiana Schuelter
; Amorim, Fábio Ferreira
; Giannini, Fabio Poianas
; Santos, Fabrício Primitivo Matos
; Buarque, Fátima
; Lima, Felipe Gallego
; Costa, Fernando Antonio Alvares da
; Sad, Fernando Cesar dos Anjos
; Aranha, Fernando G.
; Ganem, Fernando
; Callil, Flavio
; Costa Filho, Francisco Flávio
; Dall´Arto, Frederico Toledo Campo
; Moreno, Geovani
; Friedman, Gilberto
; Moralez, Giulliana Martines
; Silva, Guilherme Abdalla da
; Costa, Guilherme
; Cavalcanti, Guilherme Silva
; Cavalcanti, Guilherme Silva
; Betônico, Gustavo Navarro
; Betônico, Gustavo Navarro
; Reis, Hélder
; Araujo, Helia Beatriz N.
; Hortiz Júnior, Helio Anjos
; Guimaraes, Helio Penna
; Urbano, Hugo
; Maia, Israel
; Santiago Filho, Ivan Lopes
; Farhat Júnior, Jamil
; Alvarez, Janu Rangel
; Passos, Joel Tavares
; Paranhos, Jorge Eduardo da Rocha
; Marques, José Aurelio
; Moreira Filho, José Gonçalves
; Andrade, Jose Neto
; Sobrinho, José Onofre de C
; Bezerra, Jose Terceiro de Paiva
; Alves, Juliana Apolônio
; Ferreira, Juliana
; Gomes, Jussara
; Sato, Karina Midori
; Gerent, Karine
; Teixeira, Kathia Margarida Costa
; Conde, Katia Aparecida Pessoa
; Martins, Laércia Ferreira
; Figueirêdo, Lanese
; Rezegue, Leila
; Tcherniacovsk, Leonardo
; Ferraz, Leone Oliveira
; Cavalcante, Liane
; Rabelo, Ligia
; Miilher, Lilian
; Garcia, Lisiane
; Tannous, Luana
; Hajjar, Ludhmila Abrahão
; Paciência, Luís Eduardo Miranda
; Cruz Neto, Luiz Monteiro da
; Bley, Macia Valeria
; Sousa, Marcelo Ferreira
; Puga, Marcelo Lourencini
; Romano, Marcelo Luz Pereira
; Nobrega, Marciano
; Arbex, Marcio
; Rodrigues, Márcio Leite
; Guerreiro, Márcio Osório
; Rocha, Marcone
; Alves, Maria Angela Pangoni
; Alves, Maria Angela Pangoni
; Rosa, Maria Doroti
; Dias, Mariza D’Agostino
; Martins, Miquéias
; Oliveira, Mirella de
; Moretti, Miriane Melo Silveira
; Matsui, Mirna
; Messender, Octavio
; Santarém, Orlando Luís de Andrade
; Silveira, Patricio Júnior Henrique da
; Vassallo, Paula Frizera
; Antoniazzi, Paulo
; Gottardo, Paulo César
; Correia, Paulo
; Ferreira, Paulo
; Torres, Paulo
; Silva, Pedro Gabrile M. de Barros e
; Foernges, Rafael
; Gomes, Rafael
; Moraes, Rafael
; Nonato filho, Raimundo
; Borba, Renato Luis
; Gomes, Renato V
; Cordioli, Ricardo
; Lima, Ricardo
; López, Ricardo Pérez
; Gargioni, Ricardo Rath de Oliveira
; Rosenblat, Richard
; Souza, Roberta Machado de
; Almeida, Roberto
; Narciso, Roberto Camargo
; Marco, Roberto
; waltrick, Roberto
; Biondi, Rodrigo
; Figueiredo, Rodrigo
; Dutra, Rodrigo Santana
; Batista, Roseane
; Felipe, Rouge
; Franco, Rubens Sergio da Silva
; Houly, Sandra
; Faria, Sara Socorro
; Pinto, Sergio Felix
; Luzzi, Sergio
; Sant’ana, Sergio
; Fernandes, Sergio Sonego
; Yamada, Sérgio
; Zajac, Sérgio
; Vaz, Sidiner Mesquita
; Bezerra, Silvia Aparecida Bezerra
; Farhat, Tatiana Bueno Tardivo
; Santos, Thiago Martins
; Smith, Tiago
; Silva, Ulysses V. A.
; Damasceno, Valnei Bento
; Nobre, Vandack
; Dantas, Vicente Cés de Souza
; Irineu, Vivian Menezes
; Bogado, Viviane
; Nedel, Wagner
; Campos Filho, Walther
; Dantas, Weidson
; Viana, William
; Oliveira Filho, Wilson de
; Delgadinho, Wilson Martins
; Finfer, Simon
; Machado, Flavia Ribeiro
.
RESUMO Objetivo: Descrever as práticas de ressuscitação volêmica em unidades de terapia intensiva brasileiras e compará-las com as de outros países participantes do estudo Fluid-TRIPS. Métodos: Este foi um estudo observacional transversal, prospectivo e internacional, de uma amostra de conveniência de unidades de terapia intensiva de 27 países (inclusive o Brasil), com utilização da base de dados Fluid-TRIPS compilada em 2014. Descrevemos os padrões de ressuscitação volêmica utilizados no Brasil em comparação com os de outros países e identificamos os fatores associados com a escolha dos fluidos. Resultados: No dia do estudo, foram incluídos 3.214 pacientes do Brasil e 3.493 pacientes de outros países, dos quais, respectivamente, 16,1% e 26,8% (p < 0,001) receberam fluidos. A principal indicação para ressuscitação volêmica foi comprometimento da perfusão e/ou baixo débito cardíaco (Brasil 71,7% versus outros países 56,4%; p < 0,001). No Brasil, a percentagem de pacientes que receberam soluções cristaloides foi mais elevada (97,7% versus 76,8%; p < 0,001), e solução de cloreto de sódio a 0,9% foi o cristaloide mais comumente utilizado (62,5% versus 27,1%; p < 0,001). A análise multivariada sugeriu que os níveis de albumina se associaram com o uso tanto de cristaloides quanto de coloides, enquanto o tipo de prescritor dos fluidos se associou apenas com o uso de cristaloides. Conclusão: Nossos resultados sugerem que cristaloides são usados mais frequentemente do que coloides para ressuscitação no Brasil, e essa discrepância, em termos de frequências, é mais elevada do que em outros países. A solução de cloreto de sódio 0,9% foi o cristaloide mais frequentemente prescrito. Os níveis de albumina sérica e o tipo de prescritor de fluidos foram os fatores associados com a escolha de cristaloides ou coloides para a prescrição de fluidos.
Abstract Objective: To describe fluid resuscitation practices in Brazilian intensive care units and to compare them with those of other countries participating in the Fluid-TRIPS. Methods: This was a prospective, international, cross-sectional, observational study in a convenience sample of intensive care units in 27 countries (including Brazil) using the Fluid-TRIPS database compiled in 2014. We described the patterns of fluid resuscitation use in Brazil compared with those in other countries and identified the factors associated with fluid choice. Results: On the study day, 3,214 patients in Brazil and 3,493 patients in other countries were included, of whom 16.1% and 26.8% (p < 0.001) received fluids, respectively. The main indication for fluid resuscitation was impaired perfusion and/or low cardiac output (Brazil: 71.7% versus other countries: 56.4%, p < 0.001). In Brazil, the percentage of patients receiving crystalloid solutions was higher (97.7% versus 76.8%, p < 0.001), and 0.9% sodium chloride was the most commonly used crystalloid (62.5% versus 27.1%, p < 0.001). The multivariable analysis suggested that the albumin levels were associated with the use of both crystalloids and colloids, whereas the type of fluid prescriber was associated with crystalloid use only. Conclusion: Our results suggest that crystalloids are more frequently used than colloids for fluid resuscitation in Brazil, and this discrepancy in frequencies is higher than that in other countries. Sodium chloride (0.9%) was the crystalloid most commonly prescribed. Serum albumin levels and the type of fluid prescriber were the factors associated with the choice of crystalloids or colloids for fluid resuscitation.
https://doi.org/10.5935/0103-507x.20210028
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14.
Prevalence evolution of SARS-CoV-2 infection in the city of São Paulo, 2020–2021
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Albuquerque, José Olimpio Moura de
; Kamioka, Gabriela Akemi
; Madalosso, Geraldine
; Costa, Selma Anequini
; Ferreira, Paula Bisordi
; Pino, Francisco Alberto
; Sato, Ana Paula Sayuri
; Carvalho, Ana Carolina Aguiar de
; Amorim, Ana Beatriz Pagliaro
; Aires, Caroline Cotrim
; Kataoka, Ana Paula Arruda Geraldes
; Savani, Elisa San Martin Mouriz
; Bessa, Thirsa Alvares Franco
; Aguiar, Breno Souza de
; Failla, Marcelo Antunes
; Santos, Edson Aparecido dos
; Brito, Edjane Maria Torreão
; Santos, Maria Cristina Honório dos
; Silva, Solange Maria Saboia e
; Caldeira, Luiz Artur Vieira
; Zamarco, Luiz Carlos
; Fonseca, Sandra Maria Sabino
; Lima, Marcia Maria de Cerqueira
; Marques, Ivanilda Argenau
; Silva, Fabiana Érica Vilanova da
; Glasser, Paula Regina
; Burihan, Patrícia Carla Piragibe Ramos
; Cavazzana, Cinthya Luzia
; Mello, Debora Silva de
; Pellini, Alessandra Cristina Guedes
; Nishio, Fernando Yoshiki
; Kian, Fernanda Miyashiro
; Braga, Elza de Santana
; Bertelli, Nilza Maria Piassi
; Fracini, Wagner
; Gonçalves, Marcelo Dell Áquila
; Zular, Paulete Secco
; Piva, Regiane de Santana
; Masi, Eduardo
.
ABSTRACT OBJECTIVE To estimate the evolution of the prevalence of SARS-CoV-2 virus infection among residents aged 18 years or over in the municipality of São Paulo. METHODS This is a population-based household survey conducted every 15 days, between June and September 2020, and January and February 2021. In total, the study comprised 11 phases. The presence of antibodies against SARS-CoV-2 was identified in venous blood using a lateral flow test, Wondfo Biotech. In the last phase, the researchers combined it with an immunoenzymatic test, Euroimmun. The participants also answered a semi-structured questionnaire on sociodemographic and economic factors, and on social distancing measures. Prevalence estimates and the 95% confidence interval were estimated according to regions, Human Development Index, sex, age group, ethnicity, education, income, and variables associated with risk or prevention of infection. To compare the frequencies among the categories of each variable, the chi-square test with Rao-Scott correction was used, considering a significance level of 5%. RESULTS In total, 23,397 individuals were interviewed and had their samples collected. The estimated prevalence of antibodies against SARS-CoV-2 ranged from 9.7% (95%CI: 7.9–11.8%) to 25.0% (95%CI: 21.7–28.7). The prevalence of individuals with antibodies against the virus was higher among black and brown people, people with lower schooling and income, and among residents of regions with lower Human Development Index. The lowest prevalences were associated with recommended measures of disease protection. The proportion of asymptomatic infection was 45.1%. CONCLUSION The estimated prevalence of the infection was lower than the cumulative incidence variation, except for the last phase of the study. The differences in prevalence estimates observed among subpopulations showed social inequality as a risk of infection. The lower prevalence observed among those who could follow prevention measures reinforce the need to maintain social distancing measures as a way to prevent SARS-CoV-2 infection.
15.
Prevalence evolution of SARS-CoV-2 infection in the city of São Paulo, 2020–2021
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Albuquerque, José Olimpio Moura de
; Kamioka, Gabriela Akemi
; Madalosso, Geraldine
; Costa, Selma Anequini
; Ferreira, Paula Bisordi
; Pino, Francisco Alberto
; Sato, Ana Paula Sayuri
; Carvalho, Ana Carolina Aguiar de
; Amorim, Ana Beatriz Pagliaro
; Aires, Caroline Cotrim
; Kataoka, Ana Paula Arruda Geraldes
; Savani, Elisa San Martin Mouriz
; Bessa, Thirsa Alvares Franco
; Aguiar, Breno Souza de
; Failla, Marcelo Antunes
; Santos, Edson Aparecido dos
; Brito, Edjane Maria Torreão
; Santos, Maria Cristina Honório dos
; Silva, Solange Maria Saboia e
; Caldeira, Luiz Artur Vieira
; Zamarco, Luiz Carlos
; Fonseca, Sandra Maria Sabino
; Lima, Marcia Maria de Cerqueira
; Marques, Ivanilda Argenau
; Silva, Fabiana Érica Vilanova da
; Glasser, Paula Regina
; Burihan, Patrícia Carla Piragibe Ramos
; Cavazzana, Cinthya Luzia
; Mello, Debora Silva de
; Pellini, Alessandra Cristina Guedes
; Nishio, Fernando Yoshiki
; Kian, Fernanda Miyashiro
; Braga, Elza de Santana
; Bertelli, Nilza Maria Piassi
; Fracini, Wagner
; Gonçalves, Marcelo Dell Áquila
; Zular, Paulete Secco
; Piva, Regiane de Santana
; Masi, Eduardo
.
ABSTRACT OBJECTIVE To estimate the evolution of the prevalence of SARS-CoV-2 virus infection among residents aged 18 years or over in the municipality of São Paulo. METHODS This is a population-based household survey conducted every 15 days, between June and September 2020, and January and February 2021. In total, the study comprised 11 phases. The presence of antibodies against SARS-CoV-2 was identified in venous blood using a lateral flow test, Wondfo Biotech. In the last phase, the researchers combined it with an immunoenzymatic test, Euroimmun. The participants also answered a semi-structured questionnaire on sociodemographic and economic factors, and on social distancing measures. Prevalence estimates and the 95% confidence interval were estimated according to regions, Human Development Index, sex, age group, ethnicity, education, income, and variables associated with risk or prevention of infection. To compare the frequencies among the categories of each variable, the chi-square test with Rao-Scott correction was used, considering a significance level of 5%. RESULTS In total, 23,397 individuals were interviewed and had their samples collected. The estimated prevalence of antibodies against SARS-CoV-2 ranged from 9.7% (95%CI: 7.9–11.8%) to 25.0% (95%CI: 21.7–28.7). The prevalence of individuals with antibodies against the virus was higher among black and brown people, people with lower schooling and income, and among residents of regions with lower Human Development Index. The lowest prevalences were associated with recommended measures of disease protection. The proportion of asymptomatic infection was 45.1%. CONCLUSION The estimated prevalence of the infection was lower than the cumulative incidence variation, except for the last phase of the study. The differences in prevalence estimates observed among subpopulations showed social inequality as a risk of infection. The lower prevalence observed among those who could follow prevention measures reinforce the need to maintain social distancing measures as a way to prevent SARS-CoV-2 infection.
https://doi.org/10.11606/s1518-8787.2021055003970
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