Estimation of the conditional distribution in a conditional Koziol-Green Model

Abstract

We introduce a new estimator for the conditional distribution function under the proportional hazards model of random censorship. Such estimator generalizes the one proposed by Abdushukurov, Chen and Lin when covariates are present. Asymptotic theory is given for this estimator. First, we establish the strong consistency, and also obtain the rate of this convergence. Then, an asymptotic representation for the conditional distribution function estimator leads us to derive its asymptotic normality. The practical performance of the estimation procedure is illustrated on a real data set. Finally, as a further application of the new estimator, some functionals of interest in survival exploratory analysis are briefly discussed.