Table 1.
Characteristics of and trends for articles and journals.
| Articles and journals | Period | Total number | P value for trend | |||
| 2000–2005 | 2006–2011 | 2012–2017 | ||||
| Articles |
|
|
|
|
|
|
|
|
Indexed in PubMed, n | 86 | 636 | 3751 | 4473 | <.001 |
|
|
Indexed in JCRa 2017, n (%) | 78 (90.7) |
625 (98.3) |
3635 (96.9) | 4338 (97.0) |
.219 |
|
|
First author from hospitals, n (%) | 33 (38.4) |
303 (47.6) |
2479 (66.1) |
2815 (62.9) |
<.001 |
|
|
First author from abroad | 3 (3.5) | 20 (3.1) | 71 (1.9) | 94 (2.1) |
.019 |
|
|
Published in OAJsb, n (%) | 16 (18.6) |
103 (16.2) |
1447 (38.6) | 1566 (35.0) |
<.001 |
|
|
Published in OAMJsc, n (%) | 0 (0) | 8 (1.3) | 898 (23.9) |
906 (20.3) |
<.001 |
| Study types per article title |
|
|
|
|
<.001 | |
|
|
With ≥1 intervention, n (%) | 29 (33.7) |
202 (31.8) |
1315 (35.1) | 1546 (34.6) |
.002 |
|
|
With ≥2 conditions, n (%) | 8 (9.3) |
132 (20.8) |
1435 (38.3) | 1575 (35.2) |
<.001 |
|
|
With only 1 condition, n (%) | 30 (34.9) |
210 (33.0) |
797 (21.2) |
1037 (23.2) |
<.001 |
|
|
Others, n (%) | 19 (22.1) | 92 (14.5) | 204 (5.4) | 315 (7.0) | <.001 |
| Journals |
|
|
|
|
|
|
|
|
Indexed in PubMed, n | 59 | 297 | 766 | 841 | <.001 |
|
|
Indexed in JCR 2017, n | 53 | 287 | 727 | 791 | <.001 |
|
|
Journal categories, n | 32 | 56 | 68 | 68 | <.001 |
aJCR: Journal Citation Reports.
bOAJ: open access journal.
cOAMJ, open access mega journal.