Table 2. Association Between Journal Registration Policies and Journal Characteristics.
| Journal Characteristic | Journal Registration Policy, No. (%) | Total, No. | ||
|---|---|---|---|---|
| Prospective Registration Requirement (n = 41)a | Registration Without Timing Requirement (n = 39)a | No Registration Requirement (n = 174)b | ||
| Category | ||||
| Behavioral sciences or psychology | 5 (16.1) | 2 (6.5) | 24 (77.4) | 31 |
| Nursing | 3 (5.5) | 4 (7.3) | 48 (87.3) | 55 |
| Nutrition and dietetics | 4 (8.7) | 15 (32.6) | 27 (58.7) | 46 |
| Rehabilitation | 13 (29.5) | 5 (11.4) | 26 (59.1) | 44 |
| Surgery | 16 (19.5) | 13 (15.9) | 53 (64.6) | 82 |
| Impact factor | ||||
| 0.0-1.9 | 19 (13.9) | 13 (9.5) | 105 (76.6) | 137 |
| 2.0-3.9 | 17 (17.5) | 20 (20.6) | 60 (61.9) | 97 |
| ≥4.0 | 5 (25.0) | 6 (30.0) | 9 (45.0) | 20 |
| Publisher | ||||
| Elsevier | 18 (27.3) | 9 (13.6) | 39 (59.1) | 66 |
| Sage | 3 (16.7) | 1 (5.6) | 14 (77.8) | 18 |
| Springer | 0 | 1 (5.3) | 18 (94.7) | 19 |
| Taylor & Francis | 5 (25.0) | 0 | 15 (75.0) | 20 |
| Wiley | 1 (2.8) | 10 (27.8) | 25 (69.4) | 36 |
| Wolters Kluwer | 5 (17.9) | 2 (7.1) | 21 (75.0) | 28 |
| Otherc | 9 (13.4) | 16 (23.9) | 42 (62.7) | 67 |
a
Journals with a conditional policy were classified as requiring registration for both prospective registration and registration without a timing requirement.
b
Included 4 journals, all categorized as not requiring registration, that were classified by Clarivate Analytics as belonging to more than 1 category of nonregulated intervention: Appetite (nutrition and dietetics; behavioral sciences or psychology), International Journal of Eating Disorders (nutrition and dietetics; behavioral sciences or psychology), European Journal of Cancer Care (nursing; rehabilitation); and Rehabilitation Nursing (nursing; rehabilitation).
c
Included publishers with <10 included journals.