Gender disparities among Brazil’s top 2% of influential scientists for career-long impact

Authors

Keywords:

Gender , Brazil, Scientist

Abstract

The ranking of the world’s top 2% most influential scientists, published by Stanford University, has gained recognition for its comprehensive methodology in evaluating scientific impact. Developed by Professor John P.A. Ioannidis and his team, this ranking employs a composite metric based on data from the Scopus database to analyze scientists’ contributions within their respective fields.

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Author Biographies

Jullyana de Souza Siqueira Quintans, Universidade Federal de Sergipe, São Cristóvão (SE), Brazil

PhD. Professor, Laboratório de Neurociências e Ensaios Farmacológicos (Lanef), Departamento de Ciências Fisiológicas, Universidade Federal de Sergipe, São Cristóvão (SE), Brazil.

Adriana Gibara Guimarães, Universidade Federal de Sergipe, São Cristóvão (SE), Brazil

PhD. Professor, Programa de Pós-Graduação em Farmácia, Departamento de Farmácia, Universidade Federal de Sergipe, São Cristóvão (SE), Brazil.

Lucindo Quintans-Júnior, Universidade Federal de Sergipe, São Cristóvão (SE), Brazil

PhD. Professor, Laboratório de Neurociências e Ensaios Farmacológicos (Lanef), Departamento de Ciências Fisiológicas, Universidade Federal de Sergipe, São Cristóvão (SE), Brazil.

Adriano Antunes de Souza Araújo, Universidade Federal de Sergipe, São Cristóvão (SE), Brazil

PhD. Professor, Laboratório de Ensaios Farmacêuticos e Toxicidade (LeFT), Departamento de Farmácia, Universidade Federal de Sergipe, São Cristóvão (SE), Brazil.

Victor Santana Santos, Universidade Federal de Sergipe, Lagarto (SE), Brazil

PhD. Professor, Núcleo de Epidemiologia e Saúde Pública (Nesp), Departamento de Medicina, Universidade Federal de Sergipe, Lagarto (SE), Brazil.

Paulo Ricardo Martins-Filho, Universidade Federal de Sergipe, Lagarto (SE), Brazil

PhD. Professor, Laboratório de Patologia Investigativa, Departamento de Educação em Saúde, Universidade Federal de Sergipe, Lagarto (SE), Brazil.

References

1. Ioannidis JPA. August 2024 data-update for “Updated science-wide author databases of standardized citation indicators” [Internet]. Vol. 7. 2024 Sep 16;7. https://doi.org/10.17632/btchxktzyw.7.

2. Ioannidis JPA, Klavans R, Boyack KW. Multiple citation indicators and their composite across scientific disciplines. PLOS Biol. 2016 Jul 1;14(7):e1002501. https://doi.org/10.1371/journal.pbio.1002501.

3. Valentova JV, Otta E, Silva ML, McElligott AG. Underrepresentation of women in the senior levels of Brazilian science. PeerJ. 2017;5:e4000. PMID: 29302384; https://doi.org/10.7717/peerj.4000.

4. Macaluso B, Larivière V, Sugimoto T, Sugimoto CR. Is science built on the shoulders of women? A study of gender differences in contributorship [Internet]. 2016 Aug. https://doi.org/10.1097/ACM.0000000000001261.

5. Brasil. Ministério da Ciência, Tecnologia e Inovação. Financiadora de Estudos e Projetos (Finep). Fundo Nacional de Desenvolvimento Científico e Tecnológico (FNDCT). Plano Anual de Investimentos 2023: Recursos Reembolsáveis [Internet]. Rio de Janeiro; 2023. 12 p. Available from: https://legacy.finep.gov.br/images/a-finep/FNDCT/2022/05_09_2023_Plano_Anual_de_Investimento_Reembolsavel_2023_.pdf.

6. Freitas LS, Brum RL, Moraes NGR, et al. Pointing out geographic and gender disparities related to productivity indicators among Brazilian ecotoxicologists. Vol. 20. 2024;20:1209–16. https://doi.org/10.1002/ieam.4905.

7. Gender disparity in the authorship of biomedical research publications during the COVID-19 pandemic: retrospective observational study. J Med Internet Res. 2021 Apr 1;23(4). https://doi.org/10.2196/25379.

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Published

2026-09-17

How to Cite

1.
Quintans J de SS, Guimarães AG, Quintans-Júnior L, Araújo AA de S, Santos VS, Martins-Filho PR. Gender disparities among Brazil’s top 2% of influential scientists for career-long impact. Sao Paulo Med J [Internet]. 2026 Sep. 17 [cited 2026 Sep. 20];144(4):1-3. Available from: https://periodicosapm.emnuvens.com.br/spmj/article/view/3131

Issue

Vol. 144 No. 4 (2026)

Section

Letter to the Editor

License

Copyright (c) 2026 Paulo Ricardo Martins Filho, Jullyana Quintans, Adriana Guimarães, Lucindo José Quintans Júnior, Adriano Antunes Araújo, Victor Santos

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.