کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
415079 | 681168 | 2011 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Rank regression for accelerated failure time model with clustered and censored data Rank regression for accelerated failure time model with clustered and censored data](/preview/png/415079.png)
For clustered survival data, the traditional Gehan-type estimator is asymptotically equivalent to using only the between-cluster ranks, and the within-cluster ranks are ignored. The contribution of this paper is two fold, (i) incorporating within-cluster ranks in censored data analysis, and (ii) applying the induced smoothing of Brown and Wang (2005, Biometrika) for computational convenience. Asymptotic properties of the resulting estimating functions are given. We also carry out numerical studies to assess the performance of the proposed approach and conclude that the proposed approach can lead to much improved estimators when strong clustering effects exist. A dataset from a litter-matched tumorigenesis experiment is used for illustration.
Journal: Computational Statistics & Data Analysis - Volume 55, Issue 7, 1 July 2011, Pages 2334–2343