© 1996 by Biometrika Trust
Estimation from truncated lifetime data with supplementary information on covariates and censoring times
Department of Statistics and Actuarial Science, University of Waterloo Waterloo, Ontario, Canada N2L 3G1
In epidemiology, reliability and other areas one encounters situations where response times and covariates for individuals in a population are observed only if the response time does not exceed an associated censoring time. Methods for obtaining supplementary information about covariates and censoring times for nonresponding individuals are considered. Estimation procedures are developed for the resulting combination of truncated data and supplementary data. Theoretical and simulation results are given, and the methodology illustrated on some automobile failure data collected under a warranty plan.
Key Words: Epidemiology Estimating function Field reliability Missing data Pseudo likelihood