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Impact Factor & Key Scientometrics

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Impact Factor


H Index


Impact Factor


I. Basic Journal Info


United States
Journal ISSN: 10521372
Publisher: MediMedia USA Inc.
History: 1990-2019
Journal Hompage: Link
How to Get Published:

Research Categories


Information not localized

II. Science Citation Report (SCR)

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SCR Impact Factor

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SCR Journal Ranking

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SCImago SJR Rank

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.

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Scopus 2-Year Impact Factor Trend

Note: impact factor data for reference only

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Scopus 3-Year Impact Factor Trend

Note: impact factor data for reference only

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Scopus 4-Year Impact Factor Trend

Note: impact factor data for reference only

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Impact Factor History

2-year 3-year 4-year
  • 2022 Impact Factor
    0 1.488 2.022
  • 2021 Impact Factor
    1.407 1.989 2.77
  • 2020 Impact Factor
    1.309 2.28 2.066
  • 2019 Impact Factor
    1.905 1.752 3.131
  • 2018 Impact Factor
    1.132 2.495 2.991
  • 2017 Impact Factor
    1.894 2.216 1.966
  • 2016 Impact Factor
    1.686 1.487 1.54
  • 2015 Impact Factor
    1.01 1.143 1.05
  • 2014 Impact Factor
    1.028 NA NA
  • 2013 Impact Factor
    0.723 NA NA
  • 2012 Impact Factor
    0.391 NA NA
  • 2011 Impact Factor
    0.328 NA NA
  • 2010 Impact Factor
    0.196 NA NA
  • 2009 Impact Factor
    0.069 NA NA
  • 2008 Impact Factor
    0.057 NA NA
  • 2007 Impact Factor
    0.271 NA NA
  • 2006 Impact Factor
    0.164 NA NA
  • 2005 Impact Factor
    0.12 NA NA
  • 2004 Impact Factor
    0.148 NA NA
  • 2003 Impact Factor
    0.092 NA NA
  • 2002 Impact Factor
    0.052 NA NA
  • 2001 Impact Factor
    0.153 NA NA
  • 2000 Impact Factor
    0.058 NA NA
Note: impact factor data for reference only




Impact Factor

Impact factor (IF) is a scientometric factor based on the yearly average number of citations on articles published by a particular journal in the last two years. A journal impact factor is frequently used as a proxy for the relative importance of a journal within its field. Find out more: What is a good impact factor?

III. Other Science Influence Indicators

Any impact factor or scientometric indicator alone will not give you the full picture of a science journal. There are also other factors such as H-Index, Self-Citation Ratio, SJR, SNIP, etc. Researchers may also consider the practical aspect of a journal such as publication fees, acceptance rate, review speed. (Learn More)

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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


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H-Index History