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Regression Analysis of Current Status Data Under the Additive Hazards Model with Auxiliary Covariates
Author(s) -
Feng Yanqin,
Ma Ling,
Sun Jianguo
Publication year - 2015
Publication title -
scandinavian journal of statistics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.359
H-Index - 65
eISSN - 1467-9469
pISSN - 0303-6898
DOI - 10.1111/sjos.12098
Subject(s) - covariate , mathematics , statistics , missing data , regression analysis , proportional hazards model , regression , econometrics , factor regression model , proper linear model , polynomial regression
This paper discusses regression analysis of current status or case I interval‐censored failure time data arising from the additive hazards model. In this situation, some covariates could be missing because of various reasons, but there may exist some auxiliary information about the missing covariates. To address the problem, we propose an estimated partial likelihood approach for estimation of regression parameters, which makes use of the available auxiliary information. The method can be easily implemented, and the asymptotic properties of the resulting estimates are established. To assess the finite sample performance of the proposed method, an extensive simulation study is conducted and indicates that the method works well.