Center for Perioperative Optimization, Department of Surgery, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark.
Cochrane Colorectal Group, Herlev, Denmark.
J Evid Based Med. 2020 Feb;13(1):34-41. doi: 10.1111/jebm.12371. Epub 2020 Feb 22.
To investigate authorship trends in Cochrane reviews from 1996 to 2018, and to examine if the authorship criteria from the International Committee of Medical Journal Editors (ICMJE) were met for Cochrane reviews with more than 15 authors based on the text in the section "Contributions of authors."
The median number of authors per review was calculated, and authorship trends within each editorial group were analyzed. The section "Contributions of authors" was assessed about the first and second authorship criteria from the ICMJE for reviews with more than 15 authors.
A total of 7447 Cochrane reviews were studied based on data from the Cochrane Database of Systematic Reviews. The median number of authors per Cochrane review was 3 in 1996 (IQR 2.5-3, range 2-3), 4 in 2007 (IQR 3-5, range 1-13), and 5 in 2018 (IQR 4-7, range 2-22). Within each editorial group, the total number of authors either increased (26/55, 47%) or was unchanged (29/55, 53%). Based on the text in "Contributions of authors," 59% (16/27) of the reviews with more than 15 authors had authors that did not fulfil the ICMJE authorship criteria. However, the text in "Contributions of authors" was often difficult to interpret.
The number of authors per Cochrane review gradually increased from 1996 to 2018. The ICMJE authorship criteria were probably not met by all authors in more than half of the reviews with more than 15 authors.
调查 1996 年至 2018 年 Cochrane 综述的作者趋势，并根据“作者贡献”部分的文本，检查超过 15 位作者的 Cochrane 综述是否符合国际医学期刊编辑委员会（ICMJE）的作者标准。
计算每篇综述的平均作者数，并分析每个编辑组内的作者趋势。评估超过 15 位作者的综述中，“作者贡献”部分关于 ICMJE 的第一和第二作者标准。
根据 Cochrane 系统评价数据库的数据，共研究了 7447 篇 Cochrane 综述。1996 年每篇 Cochrane 综述的平均作者数为 3（中位数 2.5-3，范围 2-3），2007 年为 4（中位数 3-5，范围 1-13），2018 年为 5（中位数 4-7，范围 2-22）。在每个编辑组内，作者总数要么增加（26/55，47%），要么不变（29/55，53%）。根据“作者贡献”部分的文本，超过 15 位作者的综述中，59%（16/27）的综述的作者不符合 ICMJE 的作者标准。然而，“作者贡献”部分的文本往往难以解读。
Cochrane 综述的作者数量从 1996 年逐渐增加到 2018 年。超过 15 位作者的综述中，可能有一半以上的综述不符合 ICMJE 的作者标准。
