Geographic Origin of Publications in Radiological Journals as a Function of GDP and Percentage of GDP Spent on Research
Geographic Origin of Publications in Radiological Journals as a Function of GDP and Percentage of GDP Spent on Research
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DOI：
10.1016/j.acra.2010.01.020
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发表时间：
2010-06-01
影响因子：
4.8
通讯作者：
Torreggiani, William C.
中科院分区：
文献类型：
--
作者：
Halpenny, Darragh;Burke, John;Torreggiani, William C.
基本原理和目的：这项研究的目的是考察影响最大的放射学期刊中论文的地理来源，并检查一个国家用于研究的国内生产总值(GDP)百分比与放射学出版物产量之间的联系。材料和方法：从2002年1月至2007年12月的6年时间里，选择了影响最大的5种普通放射学期刊(根据ISI Web of Knowledge数据库)。根据相应作者所在的国家对出版物进行汇总。根据某一国家的国内生产总值和用于研究的国内生产总值占国内生产总值的百分比，对出版物(总数和按人口规模校正的出版物)进行了评估。结果：共检索到10,925篇文献。排名前十的国家发表的论文占论文总数的83.9%。美国是最多产的国家，占总数的41.7%。排名第二和第三的国家分别是德国(11.6%)和日本(6.7%)。经GDP修正后，较小的欧洲国家表现优于较大的国家。瑞士(每10亿份国内生产总值中有0.925份出版物)、奥地利(每10亿份国内生产总值中有0.694份出版物)和比利时(每10亿份国内生产总值中有0.648份出版物)发表的论文最多。根据研究支出占GDP的比例进行修正后，欧洲国家再次位居榜首，希腊、土耳其和比利时的比例最好。研究经费占国内生产总值的比例与高排名放射学期刊的发文量呈正相关(r=0.603，P<；.001)。结论：美国是发表论文绝对数量最多的国家。使用人口规模来比较出版物产出的缺陷是显而易见的，使用GDP和用于研究的GDP的百分比进行比较可能会得出更有意义的结果。当把GDP考虑在内时，较小的欧洲国家的生产率更高。放射学研究投资的重要性被增加的研究资金和高影响力的放射学期刊上发表的论文数量之间的联系所强调。
Rationale and Objectives: The aim of this study was to examine the geographic origin of publications in the highest impacting radiology journals and to examine the link between the percentage of gross domestic product (GDP) spent on research by a country and the output of radiology publications.Materials and Methods: The five highest impacting general radiology journals (according to the ISI Web of Knowledge database) were selected over a 6-year period from January 2002 to December 2007. Publications were totaled according to the country of the corresponding author. Publications (total and corrected for population size) were assessed according to the GDP of a given country and the percentage of GDP spent on research in that country. Correlation was determined using Spearman's rank.Results: In total, 10,925 papers were identified. The top 10 nations produced 83.9% of the total number of papers. The United States was the most prolific country, with 41.7% of the total. The second-ranked and third-ranked countries were Germany (11.6%) and Japan (6.7%). Corrected for GDP, smaller European countries outperformed larger nations. Switzerland (0.925 publications per billion of GDP), Austria (0.694 publications per billion of GDP), and Belgium (0.648 publications per billion of GDP) produced the most papers per billion of GDP. When corrected for percentage of GDP spent on research, European countries again ranked highest, with Greece, Turkey, and Belgium having the best ratios. The percentage of GDP spent on research was positively correlated with the number of publications in high-ranking radiology journals (r = 0.603, P < .001).Conclusions: The United States is the most productive country in absolute number of publications. The flaws of using population size to compare publication output are clear, and a comparison using GDP and the percentage of GDP spent on research may give more meaningful results. When GDP is taken into consideration, smaller European countries are more productive. The importance of investment in radiologic research is emphasized by the association between increased funding of research and the number of publications in high-impacting radiology journals.