Analysis of error-prone survival data under additive hazards models: measurement error effects and adjustments

Lifetime Data Analysis
Ying Yan, Grace Y Yi

Abstract

Covariate measurement error occurs commonly in survival analysis. Under the proportional hazards model, measurement error effects have been well studied, and various inference methods have been developed to correct for error effects under such a model. In contrast, error-contaminated survival data under the additive hazards model have received relatively less attention. In this paper, we investigate this problem by exploring measurement error effects on parameter estimation and the change of the hazard function. New insights of measurement error effects are revealed, as opposed to well-documented results for the Cox proportional hazards model. We propose a class of bias correction estimators that embraces certain existing estimators as special cases. In addition, we exploit the regression calibration method to reduce measurement error effects. Theoretical results for the developed methods are established, and numerical assessments are conducted to illustrate the finite sample performance of our methods.

References

May 9, 1998·Biotechnology & Genetic Engineering Reviews·J M van der Vaart, C T Verrips
Jan 26, 2008·Statistics in Medicine·David M Zucker, Donna Spiegelman

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