Proportional Risks Model
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. DIFFERENT RESPONSE TO EXPOSURE TO AIR POLLUTANTS IN GIRLS AND BOYS
RESUMO Objetivo: Identificar associação entre exposição ao material particulado fino e internações por doenças respiratórias em crianças de até dez anos de idade, no município de Cuiabá, MT, estratificando a análise por sexo e calculando excesso de custos. Métodos: Estudo ecológico de séries temporais, sendo a variável dependente o núme
Rev. paul. pediatr.. Publicado em: 08/04/2019
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2. Sobrevida de idosos e exposição à polifarmácia no município de São Paulo: Estudo SABE
RESUMO: Introdução: O uso de polifarmácia pode ser resultante da presença concomitante de condições crônicas, atendimento por diversos médicos e automedicação. Combinada com a vulnerabilidade de idosos aos efeitos dos medicamentos devido a alterações farmacocinéticas e farmacodinâmicas, a polifarmácia torna essa população mais suscetível
Rev. bras. epidemiol.. Publicado em: 04/02/2019
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3. Coarse particles and hospital admissions due to respiratory diseases in children. An ecological time series study
ABSTRACT BACKGROUND: Exposure to particulate matter (PM) is associated with hospitalizations due to respiratory diseases among children. DESIGN AND SETTING: An ecological time series study was carried out to identify the role of coarse fractions of particulate matter (PM10-2.5) in hospitalizations among children up to 10 years of age, in Piracicaba (SP)
Sao Paulo Med. J.. Publicado em: 25/06/2018
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4. Association of body mass index with disease severity and prognosis in patients with non-cystic fibrosis bronchiectasis
The objective of this observational, multicenter study was to evaluate the association of body mass index (BMI) with disease severity and prognosis in patients with non-cystic fibrosis bronchiectasis. A total of 339 patients (197 females, 142 males) diagnosed with non-cystic fibrosis bronchiectasis by high-resolution computed tomography were classified into
Braz J Med Biol Res. Publicado em: 10/07/2015
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5. Association of sulfur dioxide exposure with circulatory system deaths in a medium-sized city in Brazil
There is a demonstrable association between exposure to air pollutants and deaths due to cardiovascular diseases. The objective of this study was to estimate the effects of exposure to sulfur dioxide on mortality due to circulatory diseases in individuals 50 years of age or older residing in São José dos Campos, SP. This was a time-series ecological study
Braz J Med Biol Res. Publicado em: 2012-11
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6. Teste bootstrap para adequacidade de modelos marginais: simulação e aplicação em dados de fertilidade de bovinos / Bootstrap test for adequacy of marginal models: simulation and application in cattle fertility data
A avaliação da adequabilidade do modelo ajustado é imprescindível na análise de dados. Em análise de sobrevivência, existem várias técnicas para essa verificação quando os modelos utilizados são adequados para dados univariados, isto é, quando não há dependência entre os tempos observados. A dependência entre os tempos observados pode ser ca
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/08/2011
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7. Modelos de riscos proporcionais e aditivos para o tratamento de covariÃveis dependentes do tempo
Frequently in survival analysis when covariates are incorporated in the analysis its registered values are those measured in the origin of the time or the beginning of the study. However in many studies that involve data of survival covariates exist that are monitored during the study and its values move in this period. These covariveis whose values if modif
Publicado em: 2004
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8. A multivariable risk factor analysis of the portoenterostomy (Kasai) procedure for biliary atresia: twenty-five years of experience from two centers.
OBJECTIVE: The authors investigated risk factors for failure after portoenterostomy for biliary atresia using univariate and multivariable methods. SUMMARY BACKGROUND DATA: Kasai's portoenterostomy has gained worldwide acceptance as the initial surgical therapy for infants with biliary atresia. Although extended survival has been achieved for many patients,
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9. Self reported poor health and low educational level predictors for mortality: a population based follow up study of 39,156 people in Sweden.
OBJECTIVE: To analyse the relative risk (RR) of mortality for people who reported poor health or had low educational level. SETTING: Sweden. DESIGN: A random sample of 39156 people was interviewed face to face by Statistics Sweden from 1979-85. The dependent variable was total mortality. Independent variables were sex, age, marital status, and socioeconomic
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10. The impact of disease pattern, surgical management, and individual surgeons on the risk for relaparotomy for recurrent Crohn's disease.
OBJECTIVE: The authors provide a multivariate analysis of a large single-center experience with limited surgery for Crohn's disease. SUMMARY BACKGROUND DATA: During the past decade, the aim of surgery for Crohn's disease has shifted from radical operation, achieving inflammation-free margins of resection, to "minimal surgery," intended to remove just grossly
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11. Older workers in the construction industry: results of a routine health examination and a five year follow up.
OBJECTIVE: To describe the health status of older construction workers and the occurrence of early retirement due to disability or of mortality within a five year follow up. METHODS: Firstly, a cross sectional study was performed among 4958 employees in the German construction industry, aged 40-64 years, who underwent standardised routine occupational health