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Bayesian model for the risk of tuberculosis infection for studies with individuals lost to follow-up

Martinez, Edson Zangiacomi ; Ruffino-Netto, Antonio ; Achcar, Jorge Alberto ; Aragon, Davi Casale

Revista de saúde pública, 2008-12, Vol.42 (6), p.999-1004 [Periódico revisado por pares]

Brazil

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  • Título:
    Bayesian model for the risk of tuberculosis infection for studies with individuals lost to follow-up
  • Autor: Martinez, Edson Zangiacomi ; Ruffino-Netto, Antonio ; Achcar, Jorge Alberto ; Aragon, Davi Casale
  • Assuntos: Algorithms ; Bayes Theorem ; Follow-Up Studies ; Humans ; Models, Statistical ; Mycobacterium ; Stochastic Processes ; Tuberculosis, Pulmonary - epidemiology
  • É parte de: Revista de saúde pública, 2008-12, Vol.42 (6), p.999-1004
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
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  • Descrição: To develop a statistical model based on Bayesian methods to estimate the risk of tuberculosis infection in studies including individuals lost to follow-up, and to compare it with a classic deterministic model. The proposed stochastic model is based on a Gibbs sampling algorithm that uses information of lost to follow-up at the end of a longitudinal study. For simulating the unknown number of reactors at the end of the study and lost to follow-up, but not reactors at time 0, a latent variable was introduced in the new model. An exercise of application of both models in the comparison of the estimates of interest was presented. The point estimates obtained from both models are near identical; however, the Bayesian model allowed the estimation of credible intervals as measures of precision of the estimated parameters. The Bayesian model can be valuable in longitudinal studies with low adherence to follow-up.
  • Editor: Brazil
  • Idioma: Português;Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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