On Corrected Score Approach for Proportional Hazards Model with Covariate Measurement Error
نویسندگان
چکیده
منابع مشابه
On corrected score approach for proportional hazards model with covariate measurement error.
In the presence of covariate measurement error with the proportional hazards model, several functional modeling methods have been proposed. These include the conditional score estimator (Tsiatis and Davidian, 2001, Biometrika 88, 447-458), the parametric correction estimator (Nakamura, 1992, Biometrics 48, 829-838), and the nonparametric correction estimator (Huang and Wang, 2000, Journal of th...
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Corrected score (Nakamura, 1990; Stefanski, 1989) is an important consistent functional modeling method for covariate measurement error in nonlinear regression. Although its pathological behaviors are known to exacerbate with increasing error contamination, neither their nature nor severity is well understood. In this article, we conduct a detailed investigation with the log-linear model for co...
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In medical studies, it is often of interest to characterize the relationship between a time-to-event and covariates, not only time-independent but also time-dependent. Time-dependent covariates are generally measured intermittently and with error. Recent interests focus on the proportional hazards framework, with longitudinal data jointly modeled through a mixed effects model. However, approach...
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Consider the case where the exact values of covariates in the proportional hazards model may not be observed but instead, only surrogates for them involving measurement errors are available. The maximum likelihood estimate based on the partial likelihood with the true covariate replaced by the observed surrogate is even asymptotically biased and may cause seriously misleading results in covaria...
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This contribution studies the Cox model under covariate measurement error Methods proposed in the literature to adjust for measurement error are reviewed The basic structural and functional approaches are discussed in some detail important modi cations and further develop ments are brie y sketched Then the basic methods are compared in a simulation study
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ژورنال
عنوان ژورنال: Biometrics
سال: 2005
ISSN: 0006-341X
DOI: 10.1111/j.1541-0420.2005.00349.x