The Cox’s model in the oncology

Mieczysław Król 2Piotr Król 1

1. Szpital Specjalistyczny Ośrodek Onkologiczny, Ks. Bielawskiego 18, Brzozów 36-200, Poland
2. University of Rzeszow, Faculty of Economics, Cwiklińskiej 2, Rzeszów 35-030, Poland

Abstract

We consider the Cox’s proportional hazard model describing the phenomena in which the unexpected events (e.g. deaths) exist in the disjoint time intervals. For such a model variation Kalbfleische’a-Prentice’a estimators has been conformed which determine the baseline hazard function and the baseline survivals function. In practice it enables to determine the survival and hazard functions for the researched units varied with the vector of endo- and exogenous features. The discussed functions have been estimated on the medical examples which include the sick from Rzeszow’ region suffering from malignant tumours . The influence of demographical, social and economic features on the therapy results have been discussed.

 

Presentation: Oral at 4 Ogólnopolskie Sympozjum "Fizyka w Ekonomii i Naukach Społecznych", by Piotr Król
See On-line Journal of 4 Ogólnopolskie Sympozjum "Fizyka w Ekonomii i Naukach Społecznych"

Submitted: 2009-04-06 22:28
Revised:   2009-06-07 00:48