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, Liuquan 1,2
刊名	COMMUNICATIONS IN STATISTICS-THEORY AND METHODS
	2021-08-12
页码	28
关键词	General hazards regression missing at random relative hazards ratio time-scale change weighted estimating equations
ISSN号	0361-0926
DOI	10.1080/03610926.2021.1967395
英文摘要	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.
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
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000690843200001
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/59177]
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.