Chad | Life expectancy at birth, 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. Development relevance: Mortality rates for different age groups (infants, children, and adults) and overall mortality indicators (life expectancy at birth or survival to a given age) are important indicators of health status in a country. Because data on the incidence and prevalence of diseases are frequently unavailable, mortality rates are often used to identify vulnerable populations. And they are among the indicators most frequently used to compare socioeconomic development across countries. Limitations and exceptions: Annual data series from United Nations Population Division's World Population Prospects are interpolated data from 5-year period data. Therefore they may not reflect real events as much as observed data. Statistical concept and methodology: Life expectancy at birth used here is the average number of years a newborn is expected to live if mortality patterns at the time of its birth remain constant in the future. It reflects the overall mortality level of a population, and summarizes the mortality pattern that prevails across all age groups in a given year. It is calculated in a period life table which provides a snapshot of a population's mortality pattern at a given time. It therefore does not reflect the mortality pattern that a person actually experiences during his/her life, which can be calculated in a cohort life table. High mortality in young age groups significantly lowers the life expectancy at birth. But if a person survives his/her childhood of high mortality, he/she may live much longer. For example, in a population with a life expectancy at birth of 50, there may be few people dying at age 50. The life expectancy at birth may be low due to the high childhood mortality so that once a person survives his/her childhood, he/she may live much longer than 50 years.
Publisher
The World Bank
Origin
Republic of Chad
Records
63
Source
Chad | Life expectancy at birth, female (years)
39.971 1960
40.196 1961
40.312 1962
40.618 1963
40.908 1964
40.716 1965
41.271 1966
41.605 1967
41.947 1968
42.354 1969
42.749 1970
42.256 1971
43.638 1972
43.536 1973
43.429 1974
43.464 1975
44.113 1976
44.334 1977
44.529 1978
44.873 1979
45.143 1980
45.596 1981
46.059 1982
46.755 1983
47.001 1984
47.121 1985
47.538 1986
47.422 1987
47.494 1988
47.738 1989
47.793 1990
47.438 1991
47.5 1992
47.438 1993
47.514 1994
47.713 1995
48.041 1996
48.187 1997
48.234 1998
48.335 1999
48.557 2000
48.802 2001
48.875 2002
49.102 2003
49.313 2004
49.304 2005
49.515 2006
50.005 2007
50.281 2008
50.361 2009
50.798 2010
51.279 2011
51.849 2012
52.16 2013
52.63 2014
53.132 2015
53.317 2016
53.752 2017
54.317 2018
54.908 2019
54.396 2020
54.283 2021
2022
Chad | Life expectancy at birth, 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. Development relevance: Mortality rates for different age groups (infants, children, and adults) and overall mortality indicators (life expectancy at birth or survival to a given age) are important indicators of health status in a country. Because data on the incidence and prevalence of diseases are frequently unavailable, mortality rates are often used to identify vulnerable populations. And they are among the indicators most frequently used to compare socioeconomic development across countries. Limitations and exceptions: Annual data series from United Nations Population Division's World Population Prospects are interpolated data from 5-year period data. Therefore they may not reflect real events as much as observed data. Statistical concept and methodology: Life expectancy at birth used here is the average number of years a newborn is expected to live if mortality patterns at the time of its birth remain constant in the future. It reflects the overall mortality level of a population, and summarizes the mortality pattern that prevails across all age groups in a given year. It is calculated in a period life table which provides a snapshot of a population's mortality pattern at a given time. It therefore does not reflect the mortality pattern that a person actually experiences during his/her life, which can be calculated in a cohort life table. High mortality in young age groups significantly lowers the life expectancy at birth. But if a person survives his/her childhood of high mortality, he/she may live much longer. For example, in a population with a life expectancy at birth of 50, there may be few people dying at age 50. The life expectancy at birth may be low due to the high childhood mortality so that once a person survives his/her childhood, he/she may live much longer than 50 years.
Publisher
The World Bank
Origin
Republic of Chad
Records
63
Source