|
|||||
|
|
Modelling Deceleration in Senescent Mortality |
|
| Authors: | MARK BEBBINGTON CHIN-DIEW LAI RIčARDAS ZITIKIS |
| Affiliation: | 1. Institute of Fundamental Sciences—Statistics, Massey University , Palmerston North, New Zealand m.bebbington@massey.ac.nz;3. Institute of Fundamental Sciences—Statistics, Massey University , Palmerston North, New Zealand;4. Department of Statistical and Actuarial Sciences , University of Western Ontario , London, Ontario, Canada |
| Abstract: | Mortality deceleration is the observed but yet to be understood phenomenon that the increase in the late-life death rate slows down after a certain species-related advanced age. Various definitions of onsets of mortality deceleration are examined. A new distribution based on the Strehler-Mildvan theory of aging takes on the required shapes. The application is done on mortality data from the 1892 cohort of Swedish women and on Mediterranean fruit flies. |
| Keywords: | biodemography Gompertz law mortality deceleration mortality rate onset of late-life mortality senescent mortality |