Sub-national mapping of population pyramids and dependency ratios in Africa and Asia

Abstract

The age group composition of populations varies substantially across continents and within countries, and is linked to levels of development, health status and poverty. The subnational variability in the shape of the population pyramid as well as the respective dependency ratio are reflective of the different levels of development of a country and are drivers for a country’s economic prospects and health burdens. Whether measured as the ratio between those of working age and those young and old who are dependent upon them, or through separate young and old-age metrics, dependency ratios are often highly heterogeneous between and within countries. Assessments of subnational dependency ratio and age structure patterns have been undertaken for specific countries and across high income regions, but to a lesser extent across the low income regions. In the framework of the WorldPop Project, through the assembly of over 100 million records across 6,389 subnational administrative units, subnational dependency ratio and high resolution gridded age/sex group datasets were produced for 87 countries in Africa and Asia.

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Identifiers

ORCID for Carla Pezzulo: orcid.org/0000-0003-4775-1787

ORCID for Graeme Hornby: orcid.org/0000-0002-2833-8711

ORCID for Alessandro Sorichetta: orcid.org/0000-0002-3576-5826

ORCID for Christopher T. Lloyd: orcid.org/0000-0001-7435-8230

ORCID for Andrew Tatem: orcid.org/0000-0002-7270-941X

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