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Properties of additive frailty model in survival analysis

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Abstract

In this paper, we study a general additive frailty model along with some special cases and examples. The monotonicity of the population hazard is investigated in comparison to the baseline hazard rate. Examples are provided where the unconditional failure rate turns out to be increasing or bathtub shaped even when the baseline hazard is increasing. Association measure, for the additive case, of the correlated life times is studied with several examples.

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Acknowledgments

The author is thankful to the referee for some useful suggestions which enhanced the presentation.

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Authors and Affiliations

  1. Department of Mathematics and Statistics, University of Maine, Orono, ME, 04469-5752, USA

    Ramesh C. Gupta

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  1. Ramesh C. Gupta
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Correspondence to Ramesh C. Gupta.

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Gupta, R.C. Properties of additive frailty model in survival analysis. Metrika 79, 1–17 (2016). https://doi.org/10.1007/s00184-015-0540-1

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  • DOI: https://doi.org/10.1007/s00184-015-0540-1

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