Table 1 Characteristics of included radiological journals
Characteristics | All (N = 117) | Positive (N = 72) | Negative (N = 45) | P value |
|---|---|---|---|---|
2022 JIF, mean ± SD, median (range) | 3.7 ± 2.8, 2.9 (0.6 to 19.7) | 3.8 ± 2.7, 3.1 (0.6 to 19.7) | 3.5 ± 2.9, 2.5 (0.6 to 14.0) | 0.552 |
JIF quartile, n (%) | ||||
Q1 | 31 (26.5) | 22 (30.6) | 9 (20.0) | 0.208 |
Q2 | 35 (29.9) | 23 (31.9) | 12 (26.7) | |
Q3 | 30 (25.6) | 18 (25.0) | 12 (26.7) | |
Q4 | 21 (17.9) | 9 (12.5) | 12 (26.7) | |
Publisher, n (%) | ||||
Springer | 30 (25.6) | 27 (37.5) | 3 (6.7) | < 0.001 |
Elsevier | 27 (23.1) | 13 (18.1) | 14 (31.1) | |
Society | 14 (12.0) | 8 (11.1) | 6 (13.3) | |
Wiley | 11 (9.4) | 4 (5.6) | 7 (15.6) | |
LWW | 8 (6.8) | 1 (1.4) | 7 (15.6) | |
Other | 27 (23.1) | 19 (26.4) | 8 (17.8) | |
Region, n (%) | ||||
North America | 56 (47.9) | 30 (41.7) | 26 (57.8) | 0.077 |
Europe | 49 (41.9) | 36 (50.0) | 13 (28.9) | |
Asia | 12 (10.3) | 6 (8.3) | 6 (13.3) | |
Publication frequency, n (%) | ||||
≥ 12 issue/year | 47 (40.2) | 29 (40.3) | 18 (40.0) | 0.860 |
6–12 issue/year | 36 (30.8) | 21 (29.2) | 15 (33.3) | |
< 6 issue/year | 34 (29.1) | 22 (30.6) | 12 (26.7) | |
Type of access, n (%) | ||||
Hybrid | 82 (70.1) | 50 (69.4) | 32 (71.1) | 0.848 |
Open | 35 (29.9) | 22 (30.6) | 13 (28.9) | |
Only in Radiology category, n (%) | ||||
Yes | 53 (45.3) | 35 (48.6) | 18 (40.0) | 0.363 |
No | 64 (54.7) | 37 (51.4) | 27 (60.0) | |
Official journal, n (%) | ||||
Yes | 84 (71.8) | 55 (76.4) | 29 (64.4) | 0.162 |
No | 33 (28.2) | 17 (23.6) | 16 (35.6) | |