SEMIPARAMETRIC ESTIMATION FOR REGRESSION COEFFICIENTS IN THE COX MODEL WITH FAILURE INDICATORS MISSING AT RANDOM

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	SEMIPARAMETRIC ESTIMATION FOR REGRESSION COEFFICIENTS IN THE COX MODEL WITH FAILURE INDICATORS MISSING AT RANDOM
	Liu, Chunling 1; Wang, Qihua1,2,3
	2010-07-01
发表期刊	STATISTICA SINICA
ISSN	1017-0405
卷号	20 期号:3 页码:1125-1142
摘要	This paper considers a regression imputation method for estimating the regression coefficients in the Cox model when some failure indicators are missing at random, and the conditional probability of the censoring indicator is assumed to be of a parametric form. To avoid problems with missspecification of the parametric form, two augmented inverse probability weighted estimators are defined, and their asymptotic properties are established. Simulation studies were conducted to demonstrate the performance of the proposed estimators, and a data set from a stage II breast cancer trial is used to illustrate our methods.
关键词	Augmented inverse probability weighting Cox proportional hazards model missing at random Nadaraya-Watson kernel estimate regression imputation
语种	英语
资助项目	National Science Fund for Distinguished Young Scholars in China[10725106] ; Naqtional Natural Science Foundation of China[10671198] ; National Science Fund for Creative Research Groups in China ; Key Lab of Complex Structure and Data Science ; Research Grants Council of the Hong Kong[HKU 7050/06P]
WOS研究方向	Mathematics
WOS类目	Statistics & Probability
WOS记录号	WOS:000280533600018
出版者	STATISTICA SINICA
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/9341
专题	应用数学研究所
通讯作者	Liu, Chunling
作者单位	1.Univ Hong Kong, Dept Stat & Actuarial Sci, Hong Kong, Hong Kong, Peoples R China 2.Yunnan Univ, Sch Math & Stat, Kunming 650091, Yunnan, Peoples R China 3.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Liu, Chunling,Wang, Qihua. SEMIPARAMETRIC ESTIMATION FOR REGRESSION COEFFICIENTS IN THE COX MODEL WITH FAILURE INDICATORS MISSING AT RANDOM[J]. STATISTICA SINICA,2010,20(3):1125-1142.
APA	Liu, Chunling,&Wang, Qihua.(2010).SEMIPARAMETRIC ESTIMATION FOR REGRESSION COEFFICIENTS IN THE COX MODEL WITH FAILURE INDICATORS MISSING AT RANDOM.STATISTICA SINICA,20(3),1125-1142.
MLA	Liu, Chunling,et al."SEMIPARAMETRIC ESTIMATION FOR REGRESSION COEFFICIENTS IN THE COX MODEL WITH FAILURE INDICATORS MISSING AT RANDOM".STATISTICA SINICA 20.3(2010):1125-1142.