Simplified Azbel Model for Fitting Mortality Tables
نویسندگان
چکیده
Since the 1825 there is Gompertz mortality function for estimation of mortality data. All the attemts of finding apropriate mortality function lead to functions that are not easy to fit with the actual mortality data. The most recent reasearches (Azbel) offer simple function for fit mortality tables. Common characteristic of all these functions are difficulty of fiting data. We need to use numerical approach to find the appropriate values of function parameters to fit the function to the mortality data. In this paper we suggest simplified Azbels model which offers more simple technique of fitting data, the well known maximum likelihood estimator. This function is simplifyed to one parametar function and offers fitting data with one equation.
منابع مشابه
Search for an unitary mortality law through a theoretical model for biological ageing
In this work we check the occurrence of the Azbel assumption of mortality within the framework of a bit string model for biological ageing. We reproduced the observed feature of linear correspondence between the fitting parameters of the death rate as obtained by Azbel with demographic data.
متن کاملModeling thermodynamic properties of electrolytes: Inclusion of the mean spherical approximation (MSA) in the simplified SAFT equation of state
In this work, an equation of state has been utilized for thermodynamic modeling of aqueous electrolyte solutions. The proposed equation of state is a combination of simplified statistical associating fluid theory (SAFT) equation of state (similar to simplified PC-SAFT) to describe the effect of short-range interactions and mean spherical approximation (MSA) term to describe the effect of long-r...
متن کاملSimulation of Simplified Computational Model of Jacket Structure with Timoshenko Cantilever Beam and Experimental Signature
Today many complex models, typically finite element models, have been employed in the analysis of jacket offshore structures. However, these comprehensive models are not readily adopted in engineering practice, especially during the preliminary design stage. As the dynamic analysis of jacket platforms is very complicated, it will be very advantageous to make a simplified computational method to...
متن کاملEmpirical laws of survival and evolution: their universality and implications.
Presented analysis of human and fly life tables proves that with the specified accuracy their entire survival and mortality curves are uniquely determined by a single point (e.g., by the birth mortality q(0)), according to the law, which is universal for species as remote as humans and flies. Mortality at any age decreases with the birth mortality q(0). According to life tables, in the narrow v...
متن کاملWhich of Simplified Acute Physiology Score-III or Mortality Probability Model-III scoring systems in prediction of mortality of non-traumatic patients is superior?
Background & Aims: Different scoring systems are used in order to assess the functional quality of intensive care units (ICU) and to predict the required costs and facilities of intensive cares. Variety of scoring systems has been explained that each has advantages and disadvantages. In this study Simplified Acute Physiology Score-III (SAPS-III) and Mortality Probability Model-III (MPM-III) wer...
متن کامل