
Open Access statistics for Outcomes Research Consortium, United States, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
59%
Total
Publications
3.8K
Total Open
Publications
2.3K
Total
Citations
120K
Open Access
Percentage
59%
Total
Publications
3.8K
Total Open
Publications
2.3K
Total
Citations
120K
Breakdown
Publisher Open
16%
Both
32%
Other Platform Open
11%
Closed
41%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 41%
755
Hybrid 24%
442
No Guarantees 35%
632
Other Platform Open
Domain 86%
1.4K
Institution 47%
765
Other Internet 10%
156
Public 2%
30
Preprint 2%
29
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 1.4K |
doaj.org OAI-PMH Repository | Institution | 466 |
DOI | Other Internet | 95 |
Unknown Repository | Other Internet | 91 |
California Digital Library | Institution | 53 |
University of Groningen | Institution | 52 |
Royal Netherlands Academy of Arts and Sciences | Institution | 42 |
Europe PMC | Domain | 37 |
Figshare | Public | 31 |
Erasmus University Rotterdam | Institution | 25 |