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)
1960 39.971
1961 40.196
1962 40.312
1963 40.618
1964 40.908
1965 40.716
1966 41.271
1967 41.605
1968 41.947
1969 42.354
1970 42.749
1971 42.256
1972 43.638
1973 43.536
1974 43.429
1975 43.464
1976 44.113
1977 44.334
1978 44.529
1979 44.873
1980 45.143
1981 45.596
1982 46.059
1983 46.755
1984 47.001
1985 47.121
1986 47.538
1987 47.422
1988 47.494
1989 47.738
1990 47.793
1991 47.438
1992 47.5
1993 47.438
1994 47.514
1995 47.713
1996 48.041
1997 48.187
1998 48.234
1999 48.335
2000 48.557
2001 48.802
2002 48.875
2003 49.102
2004 49.313
2005 49.304
2006 49.515
2007 50.005
2008 50.281
2009 50.361
2010 50.798
2011 51.279
2012 51.849
2013 52.16
2014 52.63
2015 53.132
2016 53.317
2017 53.752
2018 54.317
2019 54.908
2020 54.396
2021 54.283
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