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How many authors are (too) many? A retrospective, descriptive analysis of authorship in biomedical publications

Bibliographic Data

ID21443293
AuthorsMartin Jakab (0000-0003-2110-5090, Paracelsus Medical University, corresponding author), Eva Kittl (Paracelsus Medical University), Tobias Kiesslich (0000-0001-5403-9478, Paracelsus Medical University)
Year2024
Volume129
Issue3
Pages1299-1328
Publication date2024-03-01
Open AccessYes
TypeARTICLE
VenueScientometrics (JOURNAL)
Journal identifiersISSN: 0138-9130 • E-ISSN: 1588-2861
PublisherSpringer Science and Business Media LLC (PUBLISHER)
DOI10.1007/s11192-024-04928-1
OpenAlexW4391215209
LanguageEN
Citations received12
References cited69

Publishing in academic journals is primary to disseminate research findings, with authorship reflecting a scientist’s contribution, yielding academic recognition, and carrying significant financial implications. Author numbers per article have consistently risen in recent decades, as demonstrated in various journals and fields. This study is a comprehensive analysis of authorship trends in biomedical papers from the NCBI PubMed database between 2000 and 2020, utilizing the Entrez Direct (EDirect) E-utilities to retrieve bibliometric data from a dataset of 17,015,001 articles. For all publication types, the mean author number per publication significantly increased over the last two decades from 3.99 to 6.25 (+ 57%, p r 2 = 0.99) with an average relative increase of 2.28% per year. This increase was highest for clinical trials (+ 5.67 authors per publication, + 97%), the smallest for case reports (+ 1.01 authors, + 24%). The proportion of single/solo authorships dropped by a factor of about 3 from 17.03% in 2000 to 5.69% in 2020. The percentage of eleven or more authors per publication increased ~ sevenfold, ~ 11-fold and ~ 12-fold for reviews, editorials, and systematic reviews, respectively. Confirming prior findings, this study highlights the escalating authorship in biomedical publications. Given potential unethical practices, preserving authorship as a trustable indicator of scientific performance is critical. Understanding and curbing questionable authorship practices and inflation are imperative, as discussed through relevant literature to tackle this issue

Bibliometrics · Descriptive statistics · Impact factor · Library science · Political science · Publishing · Statistics · Academic Writing and Publishing · Computer Science · Law · Mathematics · Medicine · Meta-analysis and systematic reviews · scientometrics and bibliometrics research

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Citations per year6
Citation span2024 - 2026 (3)
Highly citedNo

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