Maximum likelihood estimation for the proportional hazards model with partly interval‐censored data

Jong S. Kim

Journal of the Royal Statistical Society Series B, 2003, vol. 65, issue 2, 489-502

Abstract: Summary. The maximum likelihood estimator (MLE) for the proportional hazards model with partly interval‐censored data is studied. Under appropriate regularity conditions, the MLEs of the regression parameter and the cumulative hazard function are shown to be consistent and asymptotically normal. Two methods to estimate the variance–covariance matrix of the MLE of the regression parameter are considered, based on a generalized missing information principle and on a generalized profile information procedure. Simulation studies show that both methods work well in terms of the bias and variance for samples of moderate size. An example illustrates the methods.

Date: 2003
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