Citation rates across all journals between January 2009 and December 2013
| Journal name | Number of articles | Median citation rate | ||||
| Open access (%) | Not open access (%) | Total | Open access (range) | Not open access (range) | P value* | |
| Gut | 70 (9.6) | 662 (90.4) | 732 | 47 (6–589) | 33 (0–602) | 0.001 |
| Gastroenterology | 13 (0.9) | 1418 (99.1) | 1431 | 42 (8–79) | 38 (1–708) | 0.863 |
| AJG | 71 (7.9) | 823 (92.1) | 894 | 30 (1–170) | 28 (1–251) | 0.364 |
| Overall | 154 (5.0) | 2903 (95.0) | 3057 | 39 (1–589) | 33 (0–708) | 0.044 |
*Mann-Whitney U test used to compare citation rates between open and non-open access publications.