Covariate Measurement Errors in Censored Survival Data

Abstract

We briefly review the literature dealing with the effect of covariate measurement errors on the parameter estimation for censored survival models. As compared to non-censored errors-in-variables models, the area has not been developed very well. Corrected scores as applied to the proportional hazards model is reviewed in detail with application to A-bomb survivors data in which estimated doses for the survivors were obtained from inaccurate information and subject to appreciable measurement errors.