The Evolution of Academic Performance in Nine Subspecialties of Internal Medicine: An Analysis of Journal Citation Reports from 1998 to 2010
The Evolution of Academic Performance in Nine Subspecialties of Internal Medicine: An Analysis of Journal Citation Reports from 1998 to 2010
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内科九个亚专科学术表现的演变：1998-2010年期刊引证报告分析
DOI：
10.1371/journal.pone.0048290
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发表时间：
2012-10
期刊：
影响因子：
3.7
通讯作者：
Chen, Xiang-Mei
中科院分区：
文献类型：
--
作者：
Wang, Yuan-Da;Wei, Ri-Bao;Cai, Guang-Yan;Chen, Xiang-Mei
背景内科包括几个亚专科。本研究旨在描述近12年来不同内科亚专科影响因素的变化趋势，以及各亚专科之间的发展差异，以及这些变化和差异背后可能的影响因素。方法选择内科9个专科进行比较。所有数据均来自科学引文索引扩展和期刊引文报告数据库。结果(1)1998 - 2010年9个亚专科期刊数量显著增加，平均增长80.23%，其中心脏及心血管系统疾病期刊数量增长131.2%，居首位；血液学增长45%排名最低。(2)感染性疾病、心脏及心血管系统疾病、消化肝病、血液学、内分泌和代谢亚专科的影响因子均显著升高（p<0.05），其中消化肝病亚专科的影响因子增幅最大，达65.4%。(3)期刊影响因子0-2在各专科中所占比例最大。高影响因子期刊（IF bbbb6）中，血液学占比最高，为10%，肾病学和呼吸系统疾病占比最低，为4%。在低影响因子（IF<2）期刊中，肾病学和变态反应学期刊最多（60%），内分泌学和代谢学期刊最少（40%）。不同亚专科间IF中位数差异有统计学意义（p<0.05），其中内分泌代谢科最高，肾内科最低。(4)最高的影响因子与各领域的期刊数量和总论文数量有相关性。结论内科期刊的影响因子呈上升趋势，其中以胃肠病学和肝病学的影响因子增幅最大。血液学期刊的影响因子较高。内分泌学和代谢学的平均IF较高。肾内科仍处于最低位置。期刊数量和论文总数与最高的影响因子相关。
Background Internal medicine includes several subspecialties. This study aimed to describe change trend of impact factors in different subspecialties of internal medicine during the past 12 years, as well as the developmental differences among each subspecialty, and the possible influencing factors behind these changes and differences. Methods Nine subspecialties of internal medicine were chosen for comparison. All data were collected from the Science Citation Index Expanded and Journal Citation Reports database. Results (1) Journal numbers in nine subspecialties increased significantly from 1998 to 2010, with an average increment of 80.23%, in which cardiac and cardiovascular system diseases increased 131.2% rank the first; hematology increased 45% rank the least. (2) Impact Factor in subspecialties of infectious disease, cardiac and cardiovascular system diseases, gastroenterology and hepatology, hematology, endocrinology and metabolism increased significantly (p<0.05), in which gastroenterology and hepatology had the largest increase of 65.4%. (3) Journal impact factor of 0–2 had the largest proportion in all subspecialties. Among the journals with high impact factor (IF>6), hematology had the maximum proportion of 10%, nephrology and respiratory system disease had the minimum of 4%. Among the journal with low impact factor (IF<2), journal in nephrology and allergy had the most (60%), while endocrinology and metabolism had the least (40%). There were differences in median number of IF among the different subspecialties (p<0.05), in which endocrinology and metabolism had the highest, nephrology had the lowest. (4) The highest IF had a correlation with journal numbers and total paper numbers in each field. Conclusion The IF of internal medicine journals showed an increasingly positive trend, in which gastroenterology and hepatology increase the most. Hematology had more high IF journals. Endocrinology and metabolism had higher average IF. Nephrology remained the lowest position. Numbers of journals and total papers were associated with the highest IF.
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DOI：
10.1136/bmj.325.7354.8/d
发表时间：
2002-07
期刊：
BMJ : British Medical Journal
影响因子：
--
作者：
A. Horgan
通讯作者：
A. Horgan
DOI：
--
发表时间：
1999
期刊：
Schweizerische medizinische Wochenschrift
影响因子：
--
作者：
L. Langdon
通讯作者：
L. Langdon
DOI：
10.4104/pcrj.2009.00051
发表时间：
2009-08
期刊：
Primary care respiratory journal : journal of the General Practice Airways Group
影响因子：
--
作者：
M. Levy
通讯作者：
M. Levy
影响因子及其在学术推广中的作用。
影响因子：
6.4
作者：
K. Adler
通讯作者：
K. Adler
影响因子：
8.1
作者：
Derek R. Smith
通讯作者：
Derek R. Smith