10Survival: progress and setbacks
Life expectancy at birth (years)
The number of years a newborn infant would live if prevailing patterns of age-specific mortality rates at the time of birth were to stay the same throughout the child???s life.
UN (United Nations). 2005b. World Population Prospects 1950???2050: The 2004 Revision. Database. Department of Economic and Social Affairs, Population Division. New York.