United Nations, Department of Economic and Social Affairs, Population Division (2007), World Population Prospects: The 2006 Revision. CD-ROM Edition – Comprehensive Dataset (United Nations publications, forthcoming); supplemented by official national statistics published in United Nations Demographic Yearbook 2003 and Demographic Yearbook 2004, available from the United Nations Statistics Division website, http://unstats.un.org/unsd/demographic/products/dyb/default.htm (accessed Dec 2007); and data compiled by the Secretariat of the Pacific Community (SPC) Demography Programme, available from the SPC website, http://www.spc.int/prism/social/health.html (accessed Dec 2007).
Life expectancy at birth is an estimate of the number of years to be lived by a female or male newborn, based on current age-specific mortality rates. Life expectancy at birth by sex gives a statistical summary of current differences in male and female mortality across all ages. In areas with high infant and child mortality rates, the indicator is strongly influenced by trends and differentials in infant and child mortality.
Life expectancy at age 60 is an estimate of the additional number of years to be lived by a woman or man who has survived to age 60, based on current age-specific mortality rates. The indicator, when disaggregated by sex, gives an indication of sex differences in survival into older ages.
(Source: United Nations Statistics Division)