Chokshi Falgun H, Kang Jian, Kundu Suprateek, Castillo Mauricio
Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA.
Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, MI.
Curr Probl Diagn Radiol. 2016 Nov-Dec;45(6):356-360. doi: 10.1067/j.cpradiol.2016.03.002. Epub 2016 Mar 24.
Our purpose was to determine if associations exist between titles characteristics and citation numbers in Radiology, American Journal of Roentgenology (AJR), and American Journal of Neuroradiology (AJNR). This retrospective study is Institutional Review Board exempt. We searched Web of Science for all original research and review articles in Radiology, AJR, and AJNR between 2006 and 2012 and tabulated number of words in the title, presence of a colon symbol, and presence of an acronym. We used a Poisson regression model to evaluate the association between number of citations and title characteristics. We then used the Wald test to detect pairwise differences in the effect of title characteristics on number of citations among the 3 journals. Between 2006 and 2012, Radiology published 2662, AJR 3998, and AJNR 2581 original research and review articles. There was a citation number increase per title word increase of 1.6% for AJNR and 2.6% for AJR and decrease of 0.8% for Radiology. For all, P < 0.001. A title colon was associated with citation increases for AJNR (16%), Radiology (14%), and AJR (7.4%). Title acronym was associated with citation increases for AJNR (10%), Radiology (14%), and AJR (13.3%). All P < 0.001. AJR had greatest effect for number of words in title vs Radiology and AJNR (P < 0.001), AJNR for presence of colon vs Radiology (P < 0.001), and AJR for presence of acronym vs AJNR (P = 0.028). Title characteristics investigated here showed a strong association with higher citation numbers in Radiology, AJR, and AJNR.
我们的目的是确定《放射学》《美国放射学杂志》（AJR）和《美国神经放射学杂志》（AJNR）的标题特征与被引用次数之间是否存在关联。这项回顾性研究无需经过机构审查委员会批准。我们在科学网中搜索了2006年至2012年间发表在《放射学》《AJR》和《AJNR》上的所有原创研究和综述文章，并统计了标题中的单词数量、是否有冒号以及是否有首字母缩略词。我们使用泊松回归模型来评估被引用次数与标题特征之间的关联。然后，我们使用 Wald 检验来检测这三种期刊中标题特征对被引用次数影响的两两差异。2006年至2012年间，《放射学》发表了2662篇原创研究和综述文章，《AJR》发表了3998篇，《AJNR》发表了2581篇。对于《AJNR》，标题中每增加一个单词，被引用次数增加1.6%；对于《AJR》，增加2.6%；对于《放射学》，减少0.8%。总体而言，P < 0.001。对于《AJNR》（16%）、《放射学》（14%）和《AJR》（7.4%），标题中有冒号与被引用次数增加相关。对于《AJNR》（10%）、《放射学》（14%）和《AJR》（13.3%），标题中有首字母缩略词与被引用次数增加相关。所有P < 0.001。就标题中的单词数量而言，《AJR》对被引用次数的影响相对于《放射学》和《AJNR》最大（P < 0.001）；就冒号的存在而言，《AJNR》相对于《放射学》的影响最大（P < 0.001）；就首字母缩略词的存在而言，《AJR》相对于《AJNR》的影响最大（P = 0.028）。此处研究的标题特征与《放射学》《AJR》和《AJNR》中较高的被引用次数之间存在密切关联。
