Frailty models power variance function with cure fraction and latent risk factors negative binomial

Vinicius Fernando Calsavara, Agatha Sacramento Rodrigues, Vera Lúcia Damasceno Tomazella and Mário de Castro

Communications in Statistics - Theory and Methods, 2017, vol. 46, issue 19, 9763-9776

Abstract: In this article, we propose a flexible cure rate model, which is an extension of Cancho et al. (2011) model, by incorporating a power variance function (PVF) frailty term in latent risk. The model is more flexible in terms of dispersion and it also quantifies the unobservable heterogeneity. The parameter estimation is reached by maximum likelihood estimation procedure and Monte Carlo simulation studies are considered to evaluate the proposed model performance. The practical relevance of the model is illustrated in a real data set of preventing cancer recurrence.

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:taf:lstaxx:v:46:y:2017:i:19:p:9763-9776

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DOI: 10.1080/03610926.2016.1218029

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