Abstract
The use of bivariate distributions plays a fundamental role in survival and reliability studies. In this paper, we consider a location scale model for bivariate survival times based on the proposal of a copula to model the dependence of bivariate survival data. For the proposed model, we consider inferential procedures based on maximum likelihood. Gains in efficiency from bivariate models are also examined in the censored data setting. For different parameter settings, sample sizes and censoring percentages, various simulation studies are performed and compared to the performance of the bivariate regression model for matched paired survival data. Sensitivity analysis methods such as local and total influence are presented and derived under three perturbation schemes. The martingale marginal and the deviance marginal residual measures are used to check the adequacy of the model. Furthermore, we propose a new measure which we call modified deviance component residual. The methodology in the paper is illustrated on a lifetime data set for kidney patients.
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Barriga, G.D.C., Louzada-Neto, F., Ortega, E.M.M. et al. A bivariate regression model for matched paired survival data: local influence and residual analysis. Stat Methods Appl 19, 477–495 (2010). https://doi.org/10.1007/s10260-010-0140-1
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DOI: https://doi.org/10.1007/s10260-010-0140-1