2019 CiteScore正式公布，速看20分以上期刊

本月下旬，应该就要公布最新的JCR影响因子了，除了这个俗称的SCI影响因子外，Elsevier基于Scopus数据库，也每年发布一个影响因子指标，正式名称为CiteScore，但每年发布均极为低调，小编刚刚发现：Elsevier又悄悄地发布了最新的CiteScore。

CiteScore与JCR影响因子不同之处

1. 计算方式不同：CiteScore的指标算法比IF需要更广的年限，即连续三年的发表文献数量在第四年的引用次数。而IF是连续两年的发表文章数量在第三年的引用次数。具体计算方式如下：

2. 指数计算文章类型不同：CiteScore计算时，因子包括所有文章类型，而影响因子引用包括所有论文（原著+综述），分母不计算通信、评论、新闻等小论文。

3. 来源数据库不同：JCR影响因子基于Web of Science数据库，CiteScore基于Scopus数据库，两者收录的期刊范围差别也非常大。

所有这些，都导致了两个指标的差异。

往年的CiteScore，我们可以看成是一个三年的影响因子，但根据刚刚公布的数据，今年的算法变动很大，我们稍后给出点简单的分析说明。

先看看这个公布数据中，CiteScore值在20分以上的期刊，后面我们会给出CiteScore的计算方法等，以及一些期刊的分值点评，比较一下CiteScore与JCR影响因子的差异。

注：以下数据全部来自于Scopus数据库，系人工整理，如有出错，尽请指出，也请谅解，注意以下排名，是在该数据库的Source Type中，选择了Journals排出来的，但有几个期刊小编没见到过。

来源出版物名称	CiteScore
Ca-A Cancer Journal for Clinicians	435.4
MMWR Recommendations and Reports	152.5
Nature Reviews Materials	123.7
Chemical Reviews	100.5
Reviews of Modern Physics	75.8
Nature Reviews Genetics	73.5
Nature Reviews Molecular Cell  Biology	73.4
The Lancet	73.4
Nature Energy	71.2
Nature Reviews Cancer	70.4
MMWR. Surveillance summaries :  Morbidity and mortality weekly  report. Surveillance summaries / CDC	68.4
Chemical Society Reviews	67.1
New England Journal of Medicine	66.1
Nature Materials	63.3
Nature Reviews Immunology	62.9
Nature Nanotechnology	59.4
Cell	58.7
Nature Photonics	58.3
National vital statistics reports :  from the Centers for Disease  Control and Prevention, National Center for  Health Statistics, National  Vital Statistics System	56.5
Energy and Environmental Science	56
Living Reviews in Relativity	54.1
IEEE Communications Surveys and  Tutorials	52.6
Physics Reports	52.4
Nature	51
The Lancet Oncology	49.4
Annual Review of Astronomy and  Astrophysics	48.7
Progress in Energy and Combustion  Science	48.3
Progress in Materials Science	47.1
Advances in Physics	46.7
Nature Medicine	45.9
Science	45.3
Nature Genetics	45.2
The Lancet Neurology	44.6
Nature Reviews Disease Primers	42.2
Annual Review of Biochemistry	41.9
Materials Science and Engineering:  R: Reports	41.6
Advanced Materials	41.3
Progress in Polymer Science	41.1
Cancer Cell	40.7
Nature Reviews Neuroscience	38.5
Annual Review of Psychology	38.2
Nature Chemistry	38.2
Cell Metabolism	37.5
Nature Reviews Clinical Oncology	37.5
Immunity	37.4
The Lancet Diabetes and  Endocrinology	37.4
Nature Physics	37
Nature Reviews Chemistry	36.4
Nature Reviews Microbiology	36.4
Proceedings of the IEEE Computer  Society Conference on Computer  Vision and Pattern Recognition	36.3
Physiological Reviews	36.1
Cell Stem Cell	35.7
Nature Reviews Drug Discovery	35.5
Advanced Energy Materials	35.4
Journal of Clinical Oncology	35.4
IEEE Transactions on Pattern  Analysis and Machine Intelligence	35.2
Annual Review of Immunology	35.1
International Materials Reviews	34.8
Nature Climate Change	34.4
Pharmacological Reviews	34.4
Annual Review of Physiology	34
Psychological Science in the Public  Interest, Supplement	33.9
Accounts of Chemical Research	33.8
Clinical Microbiology Reviews	33.3
European Urology	33.2
Nature Reviews Endocrinology	33
Reports on Progress in Physics	32.9
Annual Review of Plant Biology	32.8
World Psychiatry	32.8
Annual Review of Fluid Mechanics	32.4
The Lancet Infectious Diseases	32.4
Gut	32.2
Nature Neuroscience	32.2
Nature Biotechnology	31.5
Nature Methods	31.3
Materials Today	31.1
Annual Review of Materials Research	31
Acta Neuropathologica	30.4
Reviews of Geophysics	30.4
Journal of Hepatology	30.3
Annual Review of Marine Science	30
Trends in Cell Biology	29.7
JAMA Oncology	29.6
Psychological Bulletin	29.4
Advanced Drug Delivery Reviews	29.3
Fungal Diversity	29.1
Microbiology and Molecular Biology  Reviews	29.1
Nature Reviews Gastroenterology and  Hepatology	29.1
Journal of the American College of  Cardiology	29
Nature Immunology	29
Advances in Optics and Photonics	28.8
Annual Review of Pathology:  Mechanisms of Disease	28.5
NursingPlus Open	28.3
Trends in Biochemical Sciences	27.8
Cell Host and Microbe	27.6
The Lancet Respiratory Medicine	27.6
Annual Review of Condensed Matter  Physics	27.2
Nano Today	26.8
Surface Science Reports	26.5
Annual Review of Clinical Psychology	26.3
JAMA - Journal of the American  Medical Association	26.3
Foundations and Trends in Machine  Learning	26.1
Coordination Chemistry Reviews	26
Annals of the Rheumatic Diseases	25.9
Molecular Biology and Evolution	25.9
Annual Review of Entomology	25.8
The Lancet Psychiatry	25.7
Trends in Cognitive Sciences	25.7
Renewable and Sustainable Energy  Reviews	25.5
Applied Catalysis B: Environmental	25.3
Foundations and Trends in Signal  Processing	25.3
Nature Cell Biology	25.3
Circulation	25.2
Science advances	25.2
Neuron	24.9
Journal of the American Chemical  Society	24.8
Gastroenterology	24.7
Progress in Lipid Research	24.6
Journal of Pineal Research	24.5
Nature Reviews Nephrology	24.5
JAMA Psychiatry	24.2
Molecular Cell	24.2
Annual Review of Physical Chemistry	24
Astronomy and Astrophysics Review	23.9
Annals of Oncology	23.8
European Heart Journal	23.7
Nature Reviews Neurology	23.7
Drug Resistance Updates	23.6
ACS Nano	23.5
Annual Review of Pharmacology and  Toxicology	23.5
ACS Energy Letters	23.4
IEEE Communications Magazine	23.4
Progress in Retinal and Eye Research	23.4
Human Reproduction Update	23.3
Nature Geoscience	23.3
Progress in Particle and Nuclear  Physics	23.3
Chem	23.2
Nature Microbiology	23.2
Nano Energy	23.1
The Lancet Global Health	23.1
Trends in Biotechnology	23.1
Molecular Psychiatry	22.7
Quarterly Journal of Economics	22.7
Trends in Plant Science	22.5
Diabetes Care	22.3
JAMA Internal Medicine	22.3
Joule	22.3
Trends in Ecology and Evolution	22.3
Academy of Management Annals	22.1
Advanced Functional Materials	22
European Journal of Heart Failure	22
American Journal of Psychiatry	21.9
Information Fusion	21.9
Personality and Social Psychology  Review	21.9
Nature Chemical Biology	21.8
IEEE Journal on Selected Areas in  Communications	21.7
Wiley Interdisciplinary Reviews:  Computational Molecular Science	21.7
American Journal of Respiratory and  Critical Care Medicine	21.6
IEEE Network	21.6
Review of Educational Research	21.6
Ecology Letters	21.5
Trends in Immunology	21.5
Light: Science and Applications	21.4
Biological Psychiatry	21.3
Living Reviews in Solar Physics	21.3
Alzheimer's and Dementia	21.1
Immunological Reviews	21.1
Nucleic Acids Research	21.1
Annual Review of Medicine	21
IEEE Transactions on Evolutionary  Computation	21
Physics of Life Reviews	20.9
Angewandte Chemie - International  Edition	20.8
Hepatology	20.6
Physical Review X	20.6
Proceedings of the IEEE	20.6
Annual Review of Biomedical  Engineering	20.5
Nano Letters	20.5
Trends in Microbiology	20.5
IEEE Transactions on Cybernetics	20.4
Nature Protocols	20.4
Foundations and Trends in Networking	20.3
IEEE Wireless Communications	20.2
Trends in Pharmacological Sciences	20.1

几点点评

一、Ca-A Cancer Journal for Clinicians，最近各路神仙都预测其最新JCR影响因子将超过300，但CiteScore 今年计算方法一变后，达到了惊人的435，当然是因为计算了多年引用量的关系。理论上，现在很难拿JCR影响因子与CiteScore再来对比了。

二、我们平时言必提Nature, Science, Cell 三个顶尖刊物，在CiteScore这个排名中，悄悄地躲在了后面，可见两个评价指标的差异之大。

三、今年CiteScore的新的计算方式

据小编从一些编辑同行了解到的计算方法是：

2016-2019年的发表的文献（特定类型）数作为分母，2016-2019年的发表的这些文献自发表来的所有引用（不限于当年）作为分子。

注：具体详细的计算规则以官方的说明更新为准

而JCR影响因子对应的则是，分母取前两年发表的特定类型文章数，分子取前两年发表的所有文献数在第三年的被引次数。

然后，JCR影响因子基于WOS数据库，CiteScore基于Scopus数据库，两者收录的期刊范围差别也非常大。

所有这些，都导致了两个指标的差异。

不过，今年的JCR影响因了也推迟了，鉴于这两年科技评价方式导向等的变化，JCR影响因子会不会也来个大改版呢？？

文章来源于运动医学与健康科学英文版

如沐风科研维修站 (Rumfer)公众号：由浙江中医药大学、中国药科大学、江西中医药大学以及福安药业和浙江省疾控中心的硕博士组成，主要发布药物研发、生产及注册，科研实验及前沿咨讯等相关信息。欢迎广大朋友老师关注我们，您的分享和关注是对我们的最大鼓励。

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