Zooming in on advances and opportunities

Published March 2, 2018



Precision maps reveal significant health and education disparities within African nations

“The Africa shown in these maps tells a different story: one of measurable, steady progress on issues long thought intractable,” writes Former United Nations Secretary General Kofi Annan in this month’s issue of Nature. His commentary accompanies two studies published yesterday in Nature by the Local Burden of Disease team at IHME.

Covering 2000 to 2015, the studies map the entire African continent in 5x5 square kilometer units. One study finds that, while nearly all nations in Africa have at least one region where children’s health is improving, not a single country is expected to end childhood malnutrition by 2030, an objective of the United Nations Sustainable Development Goals (SDGs). The other study looks at years of education on the same scale.

Mapping children’s growth and basic schooling at precise local levels gives stakeholders – from clinicians and teachers to donors and policymakers – insights into where to direct resources to improve lives in Africa.

“The maps not only help to reveal local ‘hot spots’ of low education levels and children’s poor nutrition, but also shine a spotlight on communities implementing successful educational and nutritional programs over the past 15 years, from which we can learn,” said Prof. Simon I. Hay, senior author of both papers and Director of Geospatial Science at IHME. “Precision public health is a new field of study which will be invaluable over the next 12 years to help effectively and equitably target resources as counties strive to meet their Sustainable Development Goals.”

The Bill & Melinda Gates Foundation funded the study as part of a five-year grant that will enable IHME researchers eventually to map a range of health metrics globally in 5x5-kilometer units.

The Local Burden of Disease project at IHME aims to produce estimates of health outcomes and related measures that cover entire continents, but to do so at a very fine, local resolution. Such estimates allow decision-makers to target resources and health interventions precisely, so that health policy decisions can be tailored for local areas rather than entire countries. Combining local detail with broad coverage – producing 5x5-kilometer estimates for entire continents and, eventually, the world – would give health officials everywhere the tools to make locally informed decisions and, in the process, help all people live longer, healthier lives.

“These maps are another tool in our arsenal,” concludes Dr. Annan. “Alone, they won’t eradicate malnutrition – but they will enable Africa’s leaders to act strategically.”


Scientific Publication

The overlapping burden of the three leading causes of disability and death in sub-Saharan African children

Scientific Publication

Mapping development and health effects of cooking with solid fuels in low-income and middle-income countries, 2000–18: a geospatial modelling study