Corey Logan, Walker Christopher, Corey Alex, Konel Jonathan, Khalil Ali, Jang Hyejeong, Kim Seongho, Gogoi Radhika
Wayne State University School of Medicine, Detroit, MI, United States.
Karmanos Cancer Institute, Detroit, MI, United States.
Gynecol Oncol Rep. 2022 Mar 11;40:100958. doi: 10.1016/j.gore.2022.100958. eCollection 2022 Apr.
To determine if the origin of article published in Gynecologic Oncology ("Journal") is correlated with quality of the article when measured per US institution and per country, using an index of citation (IOC) metric as a stand-in for article quality.
PubMed was used to query the Journal from 2005 to 2020. Articles not deemed original research were excluded. A US-only cohort ("US-Only") was evaluated separately from the entire cohort ("Whole"). The IOC for each article was calculated by dividing the number of citations listed in PubMed by the days from the publication date to 9/1/2021. The IOC per US institution was summarized by the median value. All articles were hand reviewed for correctness. The Whole cohort included all countries with 3 or more publications (including all of the US-Only cohort) and underwent similar analysis. Correlation coefficients were estimated using Pearson's correlation after log-transformation.
In the US-only cohort, 2733 articles from 276 institutions within the US contributed original articles to the Journal. The association between the number of publications per institution and the median IOC was not well correlated (Pearson's Correlation coeffeicient r = 0.16, p = 0.009). In the Whole cohort, 5,848 original research articles were published from 40 countries. There was no difference between median IOC for articles from US compared to non-US institutions was (0.0026 vs 0.0027, p = 0.287). The US median IOC was ranked 17/40. The US accounted for just over half (51.2%) of publications, and there was a trend of decreasing Non-US publications over time (p = 0.0004).
The Journal was fairly consistent in the quality of articles published over the 15-year study period when using the IOC as a surrogate for quality, regardless of the article's country or US institution of origin.
使用引用指数(IOC)指标作为文章质量的替代指标,确定在美国各机构和各国发表于《妇科肿瘤学》(“期刊”)上的文章来源是否与文章质量相关。
利用PubMed查询2005年至2020年该期刊的文章。排除非原创研究文章。仅在美国的队列(“仅美国队列”)与整个队列(“整体队列”)分开评估。每篇文章的IOC通过将PubMed列出的引用次数除以从发表日期到2021年9月1日的天数来计算。美国各机构的IOC以中位数进行汇总。所有文章均经过人工审核以确保正确性。整体队列包括发表文章数量不少于3篇的所有国家(包括所有仅美国队列),并进行了类似分析。经对数转换后,使用Pearson相关性估计相关系数。
在仅美国队列中,美国境内276个机构的2733篇文章为该期刊贡献了原创文章。每个机构的发表文章数量与IOC中位数之间的关联相关性不强(Pearson相关系数r = 0.16,p = 0.009)。在整体队列中,来自40个国家的5848篇原创研究文章被发表。美国机构文章的IOC中位数与非美国机构文章的IOC中位数之间没有差异(分别为0.0026和0.0027,p = 0.287)。美国的IOC中位数在40个国家中排名第17。美国的文章发表量略超过一半(51.2%),且随着时间推移非美国文章发表量呈下降趋势(p = 0.0004)。
在为期15年的研究期内,以IOC作为质量替代指标时,无论文章的来源国或美国机构如何,该期刊发表文章的质量相当一致。