Efficient estimation for accelerated failure time model under case-cohort and nested case-control sampling
نویسندگان
چکیده
منابع مشابه
Efficient Estimation for the Accelerated Failure Time Model
The accelerated failure time model provides a natural formulation of the effects of covariates on potentially censored response variable. The existing semiparametric estimators are computationally intractable and statistically inefficient. In this article we propose an approximate nonparametric maximum likelihood method for the accelerated failure time model with possibly time-dependent covaria...
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K. Ohneberg1,2; M. Wolkewitz1,2; J. Beyersmann3; M. Palomar-Martinez4,5; P. Olaechea-Astigarraga6; F. Alvarez-Lerma7; M. Schumacher1 1Institute for Medical Biometry and Statistics, Medical Center University of Freiburg, Freiburg, Germany; 2Freiburg Center for Data Analysis and Modelling, University of Freiburg, Freiburg, Germany; 3Institute of Statistics, Ulm University, Ulm, Germany; 4Hospital...
متن کاملAccelerated failure time model under general biased sampling scheme.
Right-censored time-to-event data are sometimes observed from a (sub)cohort of patients whose survival times can be subject to outcome-dependent sampling schemes. In this paper, we propose a unified estimation method for semiparametric accelerated failure time models under general biased estimating schemes. The proposed estimator of the regression covariates is developed upon a bias-offsetting ...
متن کاملThe accelerated failure time model under biased sampling.
Chen (2009, Biometrics) studies the semi-parametric accelerated failure time model for data that are size biased. Chen considers only the uncensored case and uses hazard-based estimation methods originally developed for censored observations. However, for uncensored data, a simple linear regression on the log scale is more natural and provides better estimators.
متن کاملEstimation Methods for Accelerated Failure Time Model
In the literature, a lot of effort has been devoted to develop effective estimation and inference methods for the accelerated failure time (AFT) model for right censored data. In the talk, we will give a review on the recent development on the estimation and inference methods for the AFT model based on the work in [Jin et al., 2003] and [Jin et al., 2004].
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ژورنال
عنوان ژورنال: Biometrics
سال: 2016
ISSN: 0006-341X
DOI: 10.1111/biom.12573