  Although the independent censoring assumption is commonly used in survival
analysis, it can be violated when the censoring time is related to the survival
time, which often happens in many practical applications. To address this
issue, we propose a flexible semiparametric method for dependent censored data.
Our approach involves fitting the survival time and the censoring time with a
joint transformed linear model, where the transformed function is unspecified.
This allows for a very general class of models that can account for possible
covariate effects, while also accommodating administrative censoring. We assume
that the transformed variables have a bivariate nonnormal distribution based on
parametric copulas and parametric marginals, which further enhances the
flexibility of our method. We demonstrate the identifiability of the proposed
model and establish the consistency and asymptotic normality of the model
parameters under appropriate regularity conditions and assumptions.
Furthermore, we evaluate the performance of our method through extensive
simulation studies, and provide a real data example for illustration.
