Volume 26 - Article 9 | Pages 191-206
Discussing the Strehler-Mildvan model of mortality
|Date received:||09 Jun 2011|
|Date published:||13 Mar 2012|
|Keywords:||force of mortality, Gompertz law, proportional hazards, Strehler-Mildvan correlation, vitality|
Background: Half a century ago Strehler and Mildvan (1960) have published the seminal paper that, based on some assumptions (postulates), theoretically 'justified' the Gompertz law of mortality.
Objective: We wish to discuss assumptions and limitations of the original Strehler-Mildvan model (as well as of the Strehler-Mildvan correlation) and consider some modifications and departures from this model.
Methods: We use the framework of stochastic point processes for analyzing the original Strehler-Mildvan model. We also suggest the 'lifesaving approach' for describing the departure from rectangularization to shifts in survival curves for human mortality that has been observed in the second half of the previous century.
Results: We show that the Strehler-Mildvan model can be justified only under the additional assumption that the process of shocks (demands for energy) follows the Poisson pattern. We also suggest a modification that accounts for the oldest-old mortality plateau.
Maxim Finkelstein - University of the Free State, South Africa
Other articles by the same author/authors in Demographic Research
Similar articles in Demographic Research