ASYMPTOTIC THEORY FOR THE FRAILTY MODEL

ASYMPTOTIC THEORY FOR THE FRAILTY MODEL
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DOI:
10.1214/aos/1176324462
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发表时间:
1995-02-01
影响因子:
4.5
通讯作者:
MURPHY, SA
MURPHY, SA
中科院分区:
数学1区
文献类型:
--
作者:
MURPHY, SA

文献摘要

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脆弱模型是考克斯比例风险模型的推广,其中包括随机效应。 Nielsen、Gill、Andersen 和 Sorensen (1992) 提出了一种 EM 算法来估计累积基线风险和随机效应的方差。这里给出了估计量的渐近分布以及渐近方差的一致估计量。
The frailty model is a generalization of Cox's proportional hazards model which includes a random effect. Nielsen, Gill, Andersen and Sorensen (1992) proposed an EM algorithm to estimate the cumulative baseline hazard and the variance of the random effect. Here the asymptotic distribution of the estimators is given along with a consistent estimator of the asymptotic variance.