Nowak Jan K, Lubarski Karol, Kowalik Lukasz M, Walkowiak Jaroslaw
Jan Nowak, Department of Pediatric Gastroenterology and Metabolic Diseases, Poznan University of Medical Sciences, ul. Szpitalna 27/33, 60-572 Poznan, Poland,
Croat Med J. 2018 Feb 28;59(1):25-32. doi: 10.3325/cmj.2018.59.25.
To investigate the contribution of selected types of articles to h-indices of medical researchers.
We used the Web of Science to export the publication records of various members from 26 scientific medical societies (13 European, 13 North American) associated with 13 medical specialties. Those included were presidents (n=26), heads of randomly chosen committees (n=52), and randomly selected members of those committees (n=52). Publications contributing to h-index were categorized as research articles, reviews, guidelines, meta-analyses, or other published work.
Overall, 3259 items authored by 129 scholars were analyzed. The median h-index was 19.5. The median contribution of research articles to h-index was 84.4%. Researchers in the upper h-index tercile (≥28.5) had a larger share of research articles that contributed to h-index in comparison with those in the lower h-index tercile (≤12.5) (median 87.3% [1st-3rd quartile: 80.0%-93.1%] vs 80.0% [50.0%-88.9%], P=0.015). We observed an analogous difference with regard to guidelines (1.1% [0%-3.7%] vs 0% [0%-0%], P=0.007).
Original research drives h-indices in medicine. Although guidelines contribute to h-indices in medicine, their influence is low. The specific role of randomized controlled trials in building h-index in medicine remains to be assessed.
探讨特定类型文章对医学研究人员h指数的贡献。
我们使用科学网导出了与13个医学专业相关的26个科学医学协会（13个欧洲协会、13个北美协会）中不同成员的出版记录。其中包括会长（n = 26）、随机挑选的委员会负责人（n = 52）以及这些委员会的随机挑选成员（n = 52）。对h指数有贡献的出版物被分类为研究文章、综述、指南、荟萃分析或其他已发表作品。
总体而言，分析了129位学者撰写的3259篇文章。h指数的中位数为19.5。研究文章对h指数的贡献中位数为84.4%。与h指数较低三分位数（≤12.5）的研究人员相比，h指数较高三分位数（≥28.5）的研究人员中，对h指数有贡献的研究文章所占比例更大（中位数87.3%[第一至第三四分位数：80.0%-93.1%]对80.0%[50.0%-88.9%]，P = 0.015）。我们在指南方面也观察到了类似差异（1.1%[0%-3.7%]对0%[0%-0%]，P = 0.007）。
原创研究推动医学领域的h指数。虽然指南对医学h指数有贡献，但其影响较小。随机对照试验在构建医学h指数中的具体作用仍有待评估。
