Biometrika · 1986 · 12 citations · 0 references
Public HealthBiostatisticsEpidemiologic MethodsHazard IdentificationSurvival AnalysisAccelerated Failure Time ModelsHazard FunctionsParametric Survival ModelsSurvival ModelingTime-dependent CovariatesAccelerated Hazard ModelsFailure-time ModelsPartial LikelihoodTests Of Proportional Hazards
The properties of an estimator based on a proportional hazards model are investigated when the model is incorrect. The estimator from the partial likelihood is shown to be consistent for a parameter that is defined implicitly. The results are used to investigate the effects on estimation if the true model is accelerated failure time, or if covariates are omitted from the proportional hazards model.