SCI Journal

Impact Factor Database

New England Journal of Medicine

Basic Journal Info


United States
Journal ISSN: 00284793, 15334406
Publisher: Massachusetts Medical Society
History: 1945-ongoing
Journal Hompage: Link
You can find more information about getting published on this journal here:

Research Categories

Impact Factor Ranking



The New England Journal of Medicine (NEJM) is the world’s leading medical journal and website. Published continuously for over 200 years, NEJM delivers high-quality, peer-reviewed research and interactive clinical content to physicians, educators, and the global medical community. Our mission is to bring physicians the best research and information at the intersection of biomedical science and clinical practice and to present this information in understandable and clinically useful formats that inform health care delivery and improve patient outcomes.

New England Journal of Medicine

Impact Factor Trend 2000 - 2018 / 2019
Note: impact factor data for reference only

Impact Factor

The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric factor based on the yearly average number of citations on articles published by a particular journal in the last two years. In other words, the impact factor of 2020 is the average of the number of cited publications divided by the citable publications of a journal. A journal impact factor is frequently used as a proxy for the relative importance of a journal within its field. Normally, journals with higher impact factors are often deemed to have more influence than those with lower ones. However, the science community has also noted that review articles typically are more citable than research articles.

(Read More: What is a good impact factor?)

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New England Journal of Medicine

Impact Factor History
  • 2018 / 2019 Impact Factor 37.909
  • 2017 Impact Factor 43.723
  • 2016 Impact Factor 40.447
  • 2015 Impact Factor 35.078
  • 2014 Impact Factor 34.458
  • 2013 Impact Factor 33.878
  • 2012 Impact Factor 32.233
  • 2011 Impact Factor 32.460
  • 2010 Impact Factor 35.027
  • 2009 Impact Factor 29.394
  • 2008 Impact Factor 27.495
  • 2007 Impact Factor 27.536
  • 2006 Impact Factor 26.706
  • 2005 Impact Factor 27.447
  • 2004 Impact Factor 30.403
  • 2003 Impact Factor 31.311
  • 2002 Impact Factor 28.931
  • 2001 Impact Factor 23.858
  • 2000 Impact Factor 20.647
Note: impact factor data for reference only

3-Years Average
Impact Factor


3-Years Growth
Impact Factor


5-Years Average
Impact Factor


5-Years Growth
Impact Factor


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Other Journal Impact Indicator

Any journal impact factor or scientometric indicator alone will not give you the full picture of a science journal. That’s why every year, scholars review current metrics to improve upon them and sometimes come up with new ones. There are also other factors to sider for example, H-Index, Self-Citation Ratio, SJR (SCImago Journal Rank Indicator) and SNIP (Source Normalized Impact per Paper). Researchers may also consider the practical aspect of a journal such as publication fees, acceptance rate, review speed.

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New England Journal of Medicine


The h-index is an author-level metric that attempts to measure both the productivity and citation impact of the publications of a scientist or scholar. The index is based on the set of the scientist's most cited papers and the number of citations that they have received in other publications


New England Journal of Medicine

SCImago Journal Rank (SJR)

SCImago Journal Rank (SJR indicator) is a measure of scientific influence of scholarly journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from.