1997年至2007年同行评审心血管期刊中引用率较低的文章：5年引用率分析
Poorly cited articles in peer-reviewed cardiovascular journals from 1997 to 2007: analysis of 5-year citation rates.
作者信息
Ranasinghe Isuru, Shojaee Abbas, Bikdeli Behnood, Gupta Aakriti, Chen Ruijun, Ross Joseph S, Masoudi Frederick A, Spertus John A, Nallamothu Brahmajee K, Krumholz Harlan M
机构信息
From Center for Outcomes Research and Evaluation, Yale-New Haven Hospital, New Haven, CT (I.R., A.S., B.B., A.G., R.C., J.S.R., H.M.K.); Discipline of Medicine, University of Adelaide, South Australia (I.R.); Section of General Internal Medicine, Department of Internal Medicine, Yale University, New Haven, CT (J.S.R.); Robert Wood Johnson Clinical Scholars Program, Department of Internal Medicine, Yale University, New Haven, CT (J.S.R., H.M.K.); Health Policy and Management, School of Public Health, Yale University, New Haven, CT (J.S.R., H.M.K.); Division of Cardiology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora (F.A.M.); University of Missouri-Kansas City, School of Medicine, Biomedical & Health Informatics (J.A.S.); Saint Luke's Mid America Heart Institute, University of Missouri-Kansas City (J.A.S.); Department of Internal Medicine and Center for Healthcare Outcomes and Policy, University of Michigan, Ann Arbor (B.K.N.); and Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University, New Haven, CT (H.M.K.).
出版信息
Circulation. 2015 May 19;131(20):1755-62. doi: 10.1161/CIRCULATIONAHA.114.015080. Epub 2015 Mar 26.
BACKGROUND
The extent to which articles are cited is a surrogate of the impact and importance of the research conducted; poorly cited articles may identify research of limited use and potential wasted investments. We assessed trends in the rates of poorly cited articles and journals in the cardiovascular literature from 1997 to 2007.
METHODS AND RESULTS
We identified original articles published in cardiovascular journals and indexed in the Scopus citation database from 1997 to 2007. We defined poorly cited articles as those with ≤5 citations in the 5 years following publication and poorly cited journals as those with >75% of journal content poorly cited. We identified 164 377 articles in 222 cardiovascular journals from 1997 to 2007. From 1997 to 2007, the number of cardiovascular articles and journals increased by 56.9% and 75.2%, respectively. Of all the articles, 75 550 (46.0%) were poorly cited, of which 25 650 (15.6% overall) had no citations. From 1997 to 2007, the proportion of poorly cited articles declined slightly (52.1%-46.2%, trend P<0.001), although the absolute number of poorly cited articles increased by 2595 (trend P<0.001). At a journal level, 44% of cardiovascular journals had more than three-fourths of the journal's content poorly cited at 5 years.
CONCLUSION
Nearly half of all peer-reviewed articles published in cardiovascular journals are poorly cited 5 years after publication, and many are not cited at all. The cardiovascular literature and the number of poorly cited articles both increased substantially from 1997 to 2007. The high proportion of poorly cited articles and journals suggests inefficiencies in the cardiovascular research enterprise.
背景
文章被引用的程度是所开展研究的影响力和重要性的一个指标；引用率低的文章可能表明研究用途有限且存在潜在的投资浪费。我们评估了1997年至2007年心血管文献中引用率低的文章和期刊的趋势。
方法与结果
我们确定了1997年至2007年发表在心血管期刊上并被Scopus引文数据库收录的原创文章。我们将引用率低的文章定义为发表后5年内被引用次数≤5次的文章，将引用率低的期刊定义为期刊内容中有超过75%被引用率低的期刊。我们确定了1997年至2007年222种心血管期刊上的164377篇文章。从1997年到2007年，心血管文章和期刊的数量分别增加了56.9%和75.2%。在所有文章中，75550篇（46.0%）被引用率低，其中25650篇（占总数的15.6%）没有被引用。从1997年到2007年，引用率低的文章比例略有下降（从52.1%降至46.2%，趋势P<0.001），尽管引用率低的文章绝对数量增加了2595篇（趋势P<0.001）。在期刊层面，44%的心血管期刊在5年后有超过四分之三的期刊内容被引用率低。
结论
心血管期刊上发表的所有同行评审文章中，近一半在发表5年后被引用率低，许多文章根本未被引用。从1997年到2007年，心血管文献以及引用率低的文章数量都大幅增加。引用率低的文章和期刊比例很高，这表明心血管研究领域存在效率低下的问题。
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