Estimation in a general semiparametric hazards regression model with missing covariates

doi:10.1080/03610926.2021.1967395

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	Estimation in a general semiparametric hazards regression model with missing covariates
	Jin, Jin 1,2; Sun, Liuquan1,2
	2021-08-12
发表期刊	COMMUNICATIONS IN STATISTICS-THEORY AND METHODS
ISSN	0361-0926
页码	28
摘要	In survival analysis, missing observations are often encountered in covariate measurements, and ignoring this feature may make an invalid inference. In this article, we consider a general semiparametric hazards regression model for right-censored data with some covariates missing at random. The covariate effects in this model are characterized by a time-scale change and a relative hazard ratio. A class of weighted estimators are proposed, and the resulting estimators are shown to be consistent and asymptotically normal. Furthermore, fully augmented weighted estimators are also studied to improve estimation efficiency. Simulation studies demonstrate that the proposed estimators perform well in a finite sample. An application to the mouse leukemia data is provided.
关键词	General hazards regression missing at random relative hazards ratio time-scale change weighted estimating equations
DOI	10.1080/03610926.2021.1967395
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11771431] ; National Natural Science Foundation of China[11690015] ; National Natural Science Foundation of China[11926341] ; Key Laboratory of RCSDS, CAS[2008DP173182]
WOS研究方向	Mathematics
WOS类目	Statistics & Probability
WOS记录号	WOS:000690843200001
出版者	TAYLOR & FRANCIS INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/59178
专题	应用数学研究所
通讯作者	Sun, Liuquan
作者单位	1.Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Math Sci, Beijing, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Jin, Jin,Sun, Liuquan. Estimation in a general semiparametric hazards regression model with missing covariates[J]. COMMUNICATIONS IN STATISTICS-THEORY AND METHODS,2021:28.
APA	Jin, Jin,&Sun, Liuquan.(2021).Estimation in a general semiparametric hazards regression model with missing covariates.COMMUNICATIONS IN STATISTICS-THEORY AND METHODS,28.
MLA	Jin, Jin,et al."Estimation in a general semiparametric hazards regression model with missing covariates".COMMUNICATIONS IN STATISTICS-THEORY AND METHODS (2021):28.