• World Neurosurg · Nov 2022

    The scope, growth, and inequities of the global neurosurgery literature: a bibliometric analysis.

    • Emma Paradie, Pranav I Warman, Romaric Waguia-Kouam, Andreas Seas, Liming Qiu, Nathan A Shlobin, Kennedy Carpenter, Jasmine Hughes, Megan von Isenburg, Michael M Haglund, Anthony T Fuller, and Alvan-Emeka K Ukachukwu.
    • Duke Global Neurosurgery and Neurology, Durham, North Carolina, USA; Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA.
    • World Neurosurg. 2022 Nov 1; 167: e670e684e670-e684.

    BackgroundHere, we evaluate the evolution and growth of global neurosurgery publications over time, further focusing on the contributions and impact of authors in low- and middle-income countries (LMICs).MethodsIn this systematic bibliometric analysis, we conducted a two-stage blinded screening process of global neurosurgery publications from 5 databases from inception through July 2021. Articles involving multi-national/multi-institutional research collaborations, detailing any area of global neurosurgery collaboration, or influencing global neurosurgery practice were included. Statistical hypothesis testing was conducted to analyze trends and hypotheses of LMIC authorship contributions.ResultsThe number of global neurosurgery publications has soared in the last decade. Overall, authors from HIC countries were most commonly from the US (41.1%), Canada (4.0%), and the UK (3.9%), while authors from LMIC countries were most commonly from Uganda (4.2%), Tanzania (2.6%), Cameroon (1.8%), and India (1.8%). Over a quarter (28%) of publications had no LMIC authors, while only 11% had 3 or more LMIC authors. The proportion of LMIC authors (LMIC-R) was not correlated with the citation rate of individual articles or with the year of publication, and a positive trend emerged when the LMIC-R of top-publishing LMICs was individually examined and compared to the year of publication.ConclusionsDespite recent growth, the number of global neurosurgery publications arising from LMICs pales in comparison to those from HICs. Collaborative efforts between certain HICs and LMICs have likely contributed to the observed increase in LMIC author independence over time.Copyright © 2022 The Author(s). Published by Elsevier Inc. All rights reserved.

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