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A Comprehensive Analysis of Authorship in Radiology Journals

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  • Wilfred Dang
  • Matthew D F McInnes
  • Ania Z Kielar
  • Jiho Hong

Abstract

Objectives: The purpose of our study was to investigate authorship trends in radiology journals, and whether International Committee of Medical Journal Editors (ICMJE) recommendations have had an impact on these trends. A secondary objective was to explore other variables associated with authorship trends. Methods: A retrospective, bibliometric analysis of 49 clinical radiology journals published from 1946–2013 was conducted. The following data was exported from MEDLINE (1946 to May 2014) for each article: authors’ full name, year of publication, primary author institution information, language of publication and publication type. Microsoft Excel Visual Basics for Applications scripts were programmed to categorize extracted data. Statistical analysis was performed to determine the overall mean number of authors per article over time, impact of ICMJE guidelines, authorship frequency per journal, country of origin, article type and language of publication. Results: 216,271 articles from 1946–2013 were included. A univariate analysis of the mean authorship frequency per year of all articles yielded a linear relationship between time and authorship frequency. The mean number of authors per article in 1946 (1.42) was found to have increased consistently by 0.07 authors/ article per year (R² = 0.9728, P

Suggested Citation

  • Wilfred Dang & Matthew D F McInnes & Ania Z Kielar & Jiho Hong, 2015. "A Comprehensive Analysis of Authorship in Radiology Journals," PLOS ONE, Public Library of Science, vol. 10(9), pages 1-15, September.
    • Handle: RePEc:plo:pone00:0139005
    DOI: 10.1371/journal.pone.0139005
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    References listed on IDEAS

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    1. ,, 2000. "Problems And Solutions," Econometric Theory, Cambridge University Press, vol. 16(2), pages 287-299, April.
    2. Weeks, William B & Wallace, Amy E & Kimberly, B.C.Surott, 2004. "Changes in authorship patterns in prestigious US medical journals," Social Science & Medicine, Elsevier, vol. 59(9), pages 1949-1954, November.
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    Cited by:

    1. Jason Cory Brunson & Xiaoyan Wang & Reinhard C Laubenbacher, 2017. "Effects of research complexity and competition on the incidence and growth of coauthorship in biomedicine," PLOS ONE, Public Library of Science, vol. 12(3), pages 1-23, March.
    2. Aman, Valeria & Besselaar, Peter van den, 2024. "Authorship regulations in performance-based funding systems and publication behaviour – A case study of German medical faculties," Journal of Informetrics, Elsevier, vol. 18(2).

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