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A class of semiparametric transformation cure models for interval-censored failure time data

Shuwei Li, Tao Hu, Xingqiu Zhao and Jianguo Sun

Computational Statistics & Data Analysis, 2019, vol. 133, issue C, 153-165

Abstract: This paper discusses regression analysis of interval-censored failure time data with a cured subgroup under a general class of semiparametric transformation cure models. For inference, a novel and stable expectation maximization (EM) algorithm with the use of Poisson variables is developed to overcome the difficulty in maximizing the observed data likelihood function with complex form. The asymptotic properties of the resulting estimators are established and in particular, the estimators of regression parameters are shown to be semiparametrically efficient. The numerical results obtained from a simulation study indicate that the proposed approach works well for practical situations. An application to a set of data on children’s mortality is also provided.

Keywords: Interval censoring; Transformation cure models; EM algorithm; Maximum likelihood estimation (search for similar items in EconPapers)
Date: 2019
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