Table 3. The distribution of biomedical open access journals among the included databases.
| Database | Journals indexed | Journals unique to each database | Journals not found in DOAJ |
|---|---|---|---|
| DOAJ | 86.7 (2,804) | 24.9 (807) | – |
| PubMed (search engine) | 56.4 (1,824) | 0 (0) | 9.0 (292) |
| - MEDLINE | 18.7 (605) | 0 (0) | 2.7 (88) |
| - PubMed Central | 36.5 (1,181) | 0 (0) | 5.4 (176) |
| - Rest of PubMeda | 10.3 (334) | – | 1.9 (60) |
| SCOPUS | 51.5 (1,667) | 0.6 (19) | 6.7 (217) |
| EMBASE | 50.6 (1,636) | 2.6 (83) | 9.6 (312) |
Notes.
Values are presented as % (n).
- DOAJ
- Directory of Open Access Journals
- OA
- open access
a
Journals only searchable via PubMed through the National Library of Medicine’s catalogue, but not prospectively indexed via MEDLINE or PubMed Central. They are included as they are prospectively indexed in one or more of the other databases.