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A test against the stratified additive hazards model
被引:0
|作者:
Feng, Yanqin
[1
,2
]
Yuan, Xin
[1
]
Zhao, Shishun
[3
,4
]
机构:
[1] Wuhan Univ, Sch Math & Stat, Wuhan, Peoples R China
[2] Wuhan Univ, Computat Sci Hubei Key Lab, Wuhan 430072, Peoples R China
[3] Jilin Univ, Ctr Appl Stat Res, Changchun, Peoples R China
[4] Jilin Univ, Coll Math, Changchun, Peoples R China
关键词:
Interval-censored;
Informative censoring;
Partial likelihood;
Hypothesis test;
FAILURE TIME DATA;
REGRESSION-ANALYSIS;
D O I:
暂无
中图分类号:
Q [生物科学];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
Stratified data are commonly encountered in practice. An interesting problem for this type of data is to test the existence of stratum effect. This paper discusses hypothesis testing of stratum effect for interval-censored data with informative observation times under the stratified additive hazards model. We construct a test statistic for this test problem, and show that the test statistic is asymptotically distributed as a chi-squared distribution. Finite sample performance of the proposed method is assessed through an extensive simulation study, which indicates the procedure works well. A real data set from a hemophilia study is analyzed to illustrate the proposed method.
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页码:267 / 277
页数:11
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