A Mixture Shared Inverse Gaussian Frailty Model under Modified Weibull Baseline Distribution

Mixture shared frailty model

Authors

  • Ralte Lalpawimawha PUC, Mizoram University
  • Arvind Pandey

DOI:

https://doi.org/10.17713/ajs.v49i2.914

Abstract

Frailty models are used in the survival analysis to account for the unobserved heterogeneity
in individual risks to disease and death. To analyze the bivariate data on related
survival times (e.g. matched pairs experiments, twin or family data), the shared frailty
models were suggested. In this manuscript, we propose a new mixture shared inverse Gaussian frailty model based on modified Weibull as baseline distribution. The Bayesian approach of Markov Chain Monte Carlo technique is employed to estimate the parameters involved in the models. In addition, a simulation study is performed to compare the true values of the parameters with the estimated values. A comparison with the existing model was done by using Bayesian comparison techniques. A better model for infectious disease data related to kidney infection is suggested.

Published

2020-02-20

How to Cite

Lalpawimawha, R., & Pandey, A. (2020). A Mixture Shared Inverse Gaussian Frailty Model under Modified Weibull Baseline Distribution: Mixture shared frailty model. Austrian Journal of Statistics, 49(2), 31-42. https://doi.org/10.17713/ajs.v49i2.914