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Source Information


Last updated on IDB: August 2017
AIDS mortality explicitly modeled? Yes
Base Population
Item Base year Data source Data collection years Notes Ref. No.
Base Population 1974 census 1974 Stable population adjusted to be consistent with the official 1974 census population at ages 10 and above, adjusted under age 10 to be consistent with fertility and mortality, smoothed, moved to midyear. 1

Latest Data Used in the Estimates and Projections
Item Reference years Data source Data collection years Notes Ref. No.
Population 2008 census 2008 Preliminary census population totals by sex used to evaluate the estimates and projections. 2
Fertility 2008 survey 2013 Average of direct estimates of age-specific fertility rates from survey for 0-4 and 5-9 years before the survey. 3
Mortality 2014 administrative data 2014 Upward adjustments to projected deaths based on reported Ebola deaths. 4,5
Migration 2016 refugee statistics 2016 Based on the change in refugee stock estimates between two consecutive years. 6
Latest HIV prevalence data 2013 HIV surveillance 2013 Antenatal clinic sentinel surveillance data. Calibrated based on 2013 Demographic and Health Survey. 7,3
Latest HIV ARV data 2015 administrative data 2015 Official estimates reported to World Health Organization. 7

Ref. No. Citations
1 Ministry of Planning and Economic Affairs. 1979. 1974 Population and Housing Census: Final Housing Census Results for Liberia and Major Divisions. Monrovia.
2 Liberia Institute of Statistics and Geo-Information Services. 2008. National Population and Housing Census: Preliminary Results. Monrovia.
3 Liberia Institute of Statistics and Geo-Information Services(LISGIS), Ministry of Health and Social Welfare [Liberia], National AIDS Control Program [Liberia], and ICF International. 2014. Liberia Demographic and Health Survey 2013. Monrovia, Liberia: LISGIS and ICF International.
4 World Health Organization. 2016. WHO Ebola Situation Report. 16 March 2016.
5 Helleringer S, Noymer A. 2015. Assessing the Direct Effects of the Ebola Outbreak on Life Expectancy in Liberia, Sierra Leone and Guinea. PLOS Currents Outbreaks. 2015 Feb 19 . Edition 1. doi: 10.1371/currents.outbreaks.01a99f8342b42a58d806d7d1749574ea.
6 United Nations High Commissioner for Refugees. 2016. 2016 Midyear Report. Geneva.
7 Joint United Nations Programme on HIV/AIDS Spectrum File, 2016.

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Source: U.S. Census Bureau | International Programs | International Data Base | Version: 12.03.21
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