Health > Life expectancy at birth Stats: compare key data on Japan & Nigeria
Definitions
- Female: The average number of years to be lived by a females in this nation born in the same year, if mortality at each age remains constant in the future. Life expectancy at birth is also a measure of overall quality of life in a country and summarizes the mortality at all ages. It can also be thought of as indicating the potential return on investment in human capital and is necessary for the calculation of various actuarial measures.
- Female > Years: Life expectancy at birth indicates the number of years a newborn infant would live if prevailing patterns of mortality at the time of its birth were to stay the same throughout its life.
- Male: The average number of years to be lived by amen in this nation born in the same year, if mortality at each age remains constant in the future. The entry includes total population as well as the male and female components. Life expectancy at birth is also a measure of overall quality of life in a country and summarizes the mortality at all ages. It can also be thought of as indicating the potential return on investment in human capital and is necessary for the calculation of various actuarial measures.
- Male > Years: Life expectancy at birth indicates the number of years a newborn infant would live if prevailing patterns of mortality at the time of its birth were to stay the same throughout its life.
- Total > Years: Life expectancy at birth indicates the number of years a newborn infant would live if prevailing patterns of mortality at the time of its birth were to stay the same throughout its life.
- Total population: The average number of years to be lived by a group of people born in the same year, if mortality at each age remains constant in the future. Life expectancy at birth is also a measure of overall quality of life in a country and summarizes the mortality at all ages. It can also be thought of as indicating the potential return on investment in human capital and is necessary for the calculation of various actuarial measures.
- Years > Females: Life expectancy at birth (years) 2003 - Females
- Years > Males: Life expectancy at birth (years) 2003 - Males
- Years > Total population: Life expectancy at birth (years) 2003 - Total population
SOURCES: CIA World Factbooks 18 December 2003 to 28 March 2011; World Development Indicators database; World Health Organization
