Time Dependent Proportional Risk Model
Mostrando 1-6 de 6 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. Phenotypic relationships between type traits and productive life using a piecewise Weibull proportional hazard model
ABSTRACT: Longevity is an important trait due to its relationship with profitability. Type traits have been used as indirect predictors for productive life. The objective of this study was to evaluate the relationship of 20 type traits on length of productive life in Brazilian Holsteins, using a piecewise Weibull proportional hazard model. Three analyses wer
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-12
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3. Risk factors for dental caries in children with developmental disabilities
Abstract The aim of the present study was to investigate risk factors for dental caries in children with developmental disabilities who were treated at a clinical reference service for patients with special needs in Belo Horizonte, MG, Brazil. This is a retrospective cohort study that evaluated 401 dental charts of individuals without dental caries or restor
Braz. oral res.. Publicado em: 14/06/2016
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4. Um modelo de risco proporcional dependente do tempo
A análise de sobrevivência tem por objetivo estudar dados de experimento em que a variável resposta é o tempo até a ocorrência de um evento de interesse. Vários autores têm preferido modelar dados de sobrevivência na presença de covariáveis por meio da função de risco, fato este relacionado à sua interpretação. Ela descreve como a probabilida
Publicado em: 2007
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5. Terapia anti-retroviral em indivíduos vivendo com Hiv/Aids, Belo Horizonte, 2001 - 2003: o desafio da adesão
It is consensual for health services that adherence to antiretroviral therapy (ARVT) is a challenge. Antiretroviral (ARV) drugs brought excellent clinical results, but these benefits are dependent directly on treatment adherence. Several studies show that factors related to health services, to therapeutic regimen and patients, and to socio-cultural and envir
Publicado em: 2005
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6. 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