Impact Factor and more
Impact Factor
- Impact Factor: 3.809 (2021) 3.638 without self-citation
- 5 Year Impact Factor: 4.748 (2021)
Time Indicators and Acceptance Rate
- Time to First Editorial Decision*: 6 days (median in 2021, for rejection or peer review)
- Time to Acceptance*: 124 days (median in 2021, for median 2 revisions)
- Time from Acceptance to Early Publication: 19 days (median in 2021)
- Acceptance Rate: 18% (submissions in 2021)
* Calculated for articles submitted as Original Articles, Short Communications, Reviews, Statistical Data, or Study Profiles.
Trends in Impact Factor
Year | Impact Factor | 5 Year Impact Factor |
2021 | 3.809 | 4.748 |
2020 | 3.211 | 4.139 |
2019 | 3.691 | 3.529 |
2018 | 3.078 | 3.431 |
2017 | 2.518 | 3.318 |
2016 | 2.447 | 3.286 |
2015 | 2.546 | 2.799 |
2014 | 3.022 | 2.592 |
2013 | 2.862 | 2.498 |
2012 | 2.113 | 2.098 |
2011 | 1.858 | 2.025 |
2010 | 2.110 | 2.203 |
2009 | 1.643 | 1.877 |
2008 | 1.642 | 1.991 |
2007 | 1.906 | N/A |
2006 | 1.240 | N/A |
2005 | 1.247 | N/A |