Mohamed A. Yusuf, PhD
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Drought-attributable mortality in Somalia

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Drought-attributable mortality in Somalia

Humanitarian health

Estimated drought-attributable mortality across Somalia by age and district, using household surveys, statistical models and scenario-based forecasts.

2023–2026 Humanitarian health Spatial epidemiology

Two choropleth maps of Somalia showing estimated crude death rate by district for 2017–19 and 2022–24.
Published figure Figure 3 from Ouchtar et al., The Lancet Regional Health – Africa 2026, reproduced under CC BY 4.0.

Overview

Somalia has had four recognised droughts since 2008. There is no complete civil registration system, so the number of people who die during a drought crisis has to be estimated. National estimates broken down by age, district and month have been rare.

My contribution

As a postdoctoral fellow at the London School of Hygiene & Tropical Medicine in 2023, I built reproducible pipelines for the mortality estimates and contributed to an R package for humanitarian decision-makers. I co-authored the second report in the series and the paper in The Lancet Regional Health – Africa. The work was funded by the UNICEF East Africa office.

Selected outputs

The work produced estimates of death rates and excess deaths in Somalia by district and month, with scenario-based forecasts to help humanitarian teams plan their response. Assuming mortality before 2017 as the counterfactual, the paper estimates 71,100 excess deaths across Somalia during 2022 to 2024. Of these, 64,500 were among children under 5.

Related

Publications

  1. 2026 Article

    Drought-attributable mortality in Somalia, 2015–2024: a retrospective and modelling study

    Ouchtar, Y., Ali, D. A., Ahmed, Y. A., Adam, M. H., Dirie, N. I., Warsame, A., Yusuf, M., Grundy, C., Watson, O. J., Checchi, F.

    The Lancet Regional Health – Africa, 8: 100072

    doi:10.1016/j.lanafr.2026.100072 Open access

  2. 2023 Report

    Mortality patterns in Somalia: retrospective estimates and scenario-based forecasting (Report 2)

    Ouchtar, Y., Yusuf, M., Watson, O., Grundy, C., Checchi, F.

    London School of Hygiene & Tropical Medicine, WHO and UNICEF

Mohamed A. Yusuf, PhD

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