Life expectancy - definition, life tables, worldwide trends and regional variation.
Life expectancy:
- Life expectancy is the average number of years which a person of a given age may expect to live, according to the mortality pattern prevalent in that country
- life expectancy at birth is a summary measurer of socio-economical, sanitary and cultural conditions of life of the population
Mortality Tables:
- Life expectancy is calculated by using the mortality tables
- The total mortality coefficient is influenced by the age and sex structure of a population
- This influence is eliminated by modelling the process of population mortality through building a specific model called mortality table
- mortality tables, used by the so called potential demography are one of the most complex and at the same time the most available methods for studying the mortality
Life expectancy at birth in the world 2009 (in years):
Life expectancy at birth (in years) by WHO Regions, 2009: