A goodness-of-fit test for the stratified proportional hazards model for survival data
Résumé
Goodness-of-fit testing is addressed in the stratified proportional hazards model for survival data. A test statistic based on within-strata cumulative sums of martingale residuals over covariates is proposed and its asymptotic distribution is derived under the null hypothesis of model adequacy. A Monte Carlo procedure is proposed to approximate the critical value of the test. Simulation studies are conducted to examine finite-sample performance of the proposed statistic.
Domaines
Méthodologie [stat.ME]
Origine : Fichiers produits par l'(les) auteur(s)
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