Evidence map›Paper›PMID 41791774›Full record

ArticleBMJ global health2026

Research capacity and decolonisation in Sub-Saharan Africa: a bibliometric analysis.

Raita Tamaki, Yuki Furuse, Hirotake Mori, Kazuki Santa, Kazuki Shimizu, Hongxiang Wang, Kozo Watanabe, Ryo Komorizono, Samson Muuo Nzou, Evans Inyangla Amukoye and 4 more

Abstract read
In one paragraph

Article in BMJ global health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Raita TamakiInstitute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.ORCID 0000-0001-8318-2716
Yuki FuruseThe University of Tokyo Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), The University of Tokyo, Tokyo, Japan furusey@g.ecc.u-tokyo.ac.jp.ORCID 0000-0002-4663-6069
Hirotake MoriDepartment of General Medicine, Juntendo University, Tokyo, Japan.ORCID 0000-0002-7988-5758
Kazuki SantaFaculty of Medical Science, Juntendo University, Urayasu, Japan.ORCID 0000-0003-2066-1407
Kazuki ShimizuDepartment of International Medical Education, Graduate School of Medicine, Nagoya University, Nagoya, Japan.
Hongxiang WangOffice for Research Initiative and Development, Nagasaki University, Nagasaki, Japan.ORCID 0009-0002-5164-5223
Kozo WatanabeThe Applied International Liberal Arts Institute, Akita International University, Akita, Japan.ORCID 0009-0000-8587-381X
Ryo KomorizonoThe University of Tokyo Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), The University of Tokyo, Tokyo, Japan.ORCID 0000-0002-7610-7985
Samson Muuo NzouInstitute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.ORCID 0000-0002-5789-4434
Evans Inyangla AmukoyeKenya Medical Research Institute, Nairobi, Kenya.ORCID 0000-0003-0683-0585
Elijah Maritim SongokKenya Medical Research Institute, Nairobi, Kenya.ORCID 0000-0001-7790-7063
Dorothy Yeboah-ManuNoguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Accra, Ghana.ORCID 0000-0002-1663-6287
Shingo InoueInstitute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.
Satoshi KanekoInstitute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.ORCID 0000-0001-9464-0911

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sub-Saharan Africa (SSA) continues to bear a disproportionate global disease burden while also facing significant disparities in research productivity and impact. As such, strengthening the research capacity in SSA is an urgent priority, necessitating a multifaceted assessment of the current landscape, the role of international collaboration and the alignment of research efforts with health needs. In this study, we conducted a macro-level bibliometric analysis to assess research capacity, thematic alignment and structural autonomy in SSA. We found that SSA accounted for approximately 15% of the global population and 21% of the global disease burden, yet it received only 2.7% of global citations in 2021. Despite increasing the research output over time, academic impact and leadership remain limited. Higher international collaboration rates were positively associated with a higher research impact, but also with a markedly greater proportion of publications without SSA researchers in key authorship positions, indicating persistent structural dependency. Researcher autonomy in SSA was substantially lower than in other regions, though slight improvements were observed during the COVID-19 period. Meanwhile, the Burden-Adjusted Research Intensity analysis showed a disproportionate concentration of research on HIV/AIDS, tuberculosis and malaria. This focus was sustained-and even intensified-in SSA during the pandemic, while many other high-burden diseases, including neglected tropical diseases, remained severely under-researched. In conclusion, this study provides quantitative evidence of persistent academic dependency and misaligned research priorities in SSA, with our analyses revealing how structural inequities in international collaborations and externally driven research agendas limit local research leadership and potentially hinder effective responses to regional health needs. Achieving a more just global research ecosystem demands active decolonisation efforts centred on empowering Global South ownership, including genuinely equitable partnerships, the reform of funding mechanisms to prioritise locally led research, and sustained investment in developing local research and leadership capacity.

Indexed as

BibliometricsBiomedical ResearchAfrica South of the SaharaCOVID-19HumansInternational CooperationAfricaGlobal HealthInfections, diseases, disorders, injuries

Identifiers

PMID41791774
PMCPMC12970081

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.