J Neurosurg. 2021 Aug 6;136(2):584-588. doi: 10.3171/2021.1.JNS204257. Print 2022 Feb 1.
Scientific productivity, as assessed by publication volume, is a common metric by which the academic neurosurgical field assesses its members. The number of authors per peer-reviewed article has been observed to increase over time across a broad range of medical specialties. This study provides an update to this trend in the neurosurgical literature.
All publications from January 1, 1980, to April 30, 2020, were queried from four neurosurgical journals: Neurosurgery, Journal of Neurosurgery (JNS), JNS: Pediatrics, and JNS: Spine. Publication information was acquired from the National Center for Biotechnology Information Entrez database and reconciled with the Scopus database. Publication type was limited to articles and excluded editorials, letters, and reviews. The number of authors and affiliation counts were determined based on structured abstract fields provided in the two databases.
Between January 1, 1980, and April 30, 2020, the overall increase in author count for the four neurosurgical journals was 0.12 to 0.18 authors per year (p < 0.001). For Neurosurgery, the mean (SD) author count increased from 2.81 (1.4) in 1980-1985 to 7.97 (4.92) in 2016-2020 (p < 0.001). For the JNS, the mean (SD) author count increased from 2.82 (1.04) in 1980-1985 to 7.6 (3.65) in 2016-2020 (p < 0.001). The percentage of articles with more than 10 authors increased from 0.2% to 22.3% in Neurosurgery and from 1.9% to 17.5% in JNS. Only 28% of the author count variation was explained by an increasing number of institutional or departmental affiliations.
Author counts for peer-reviewed articles in neurosurgical academic journals have increased significantly during the past 4 decades, with large increases in the numbers of articles with more than 10 authors in the past 5 years. A total of 28% of the variation in this increase can be explained by an increase in multiinstitutional or multidepartmental studies.
以出版物数量评估的科研产出是学术神经外科学界评估其成员的常用指标。人们发现，在广泛的医学专业领域，每篇同行评议文章的作者数量随着时间的推移而增加。本研究对神经外科学文献中的这一趋势进行了更新。
从四个神经外科期刊中检索 1980 年 1 月 1 日至 2020 年 4 月 30 日的所有出版物：神经外科、《神经外科学杂志》（JNS）、JNS：儿科学和 JNS：脊柱。出版物信息是从美国国家生物技术信息中心的 Entrez 数据库中获取的，并与 Scopus 数据库进行了核对。出版物类型仅限于文章，不包括社论、信件和评论。作者数量和附属机构数量是根据两个数据库中提供的结构化摘要字段确定的。
1980 年 1 月 1 日至 2020 年 4 月 30 日期间，四个神经外科期刊的作者总数每年增加 0.12 至 0.18 人（p < 0.001）。对于神经外科，1980-1985 年的平均（SD）作者人数从 2.81（1.4）增加到 2016-2020 年的 7.97（4.92）（p < 0.001）。对于 JNS，1980-1985 年的平均（SD）作者人数从 2.82（1.04）增加到 2016-2020 年的 7.6（3.65）（p < 0.001）。超过 10 名作者的文章比例从神经外科的 0.2%增加到 22.3%，从 JNS 的 1.9%增加到 17.5%。只有 28%的作者数量变化可以用机构或部门附属机构数量的增加来解释。
在过去的 40 年里，神经外科学术期刊同行评议文章的作者人数显著增加，过去 5 年中，超过 10 名作者的文章数量大幅增加。这种增加的 28%可以用多机构或多部门研究的增加来解释。
