the Healthy Life Expectancy from the Health State Function of a Population in Connection to the
Life Expectancy at Birth
H Skiadas and Charilaos Skiadas
Hanover College, Indiana, USA
Abstract: Following our previous works on the health
state of a population and the related health state function we proceed in developing a method to estimate the Healthy Life
Expectancy in connection to the relative impact of the Mortality Area in the health state function graph.
The resulting tools are applied to the data sets for 1990, 2000 and
2009 for the Countries of the World Health Organization (WHO). The application is done in the Excel Chart and it is ready
to be used for other time periods.
results are compared with the estimates presented in the WHO report for 2000 showing a good relationship between the estimates
of the two methods. However, our proposed method, not based on collection of data for diseases and other causes affecting
a healthy life, is more flexible. We can estimate the healthy life years from various time periods when information related
to diseases is missing.
Keywords: Health state function, Healthy life expectancy, Deterioration, Loss of healthy years, HALE, DALE,
World Health Organization, WHO.