Impact Factor and more
Impact Factor
- Impact Factor: 4.7 (2022） 4.5 without self-citation
- 5 Year Impact Factor: 4.9 (2022)
Time Indicators and Acceptance Rate
- Time to First Editorial Decision*: 6 days (median in 2022, for rejection or peer review)
- Time to Acceptance*: 130 days (median in 2022, for median 2 revisions)
- Time from Acceptance to Early Publication: 20 days (median in 2022)
- Acceptance Rate: 20% (submissions in 2022)
* 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 |
| 2022 | 4.7 | 4.9 |
| 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 |