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Pseudo-partial likelihood for proportional hazards models with biased-sampling data

Wei Yann Tsai

Biometrika, 2009, vol. 96, issue 3, 601-615

Abstract: We obtain a pseudo-partial likelihood for proportional hazards models with biased-sampling data by embedding the biased-sampling data into left-truncated data. The log pseudo-partial likelihood of the biased-sampling data is the expectation of the log partial likelihood of the left-truncated data conditioned on the observed data. In addition, asymptotic properties of the estimator that maximize the pseudo-partial likelihood are derived. Applications to length-biased data, biased samples with right censoring and proportional hazards models with missing covariates are discussed. Copyright 2009, Oxford University Press.

Date: 2009
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Handle: RePEc:oup:biomet:v:96:y:2009:i:3:p:601-615