
Open Access statistics for American Systems (United States), United States, covering academic research published from 2000 to 2025.
Open Access statistics for American Systems (United States), United States, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
23%
Total
Publications
191
Total Open
Publications
43
Total
Citations
2.4K
Open Access
Percentage
23%
Total
Publications
191
Total Open
Publications
43
Total
Citations
2.4K
Breakdown
Publisher Open
11%
Both
6%
Other Platform Open
4%
Closed
79%
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 16%
5
Hybrid 47%
15
No Guarantees 37%
12
Other Platform Open
Institution 67%
12
Domain 33%
6
Other Internet 11%
2
Preprint 6%
1
Public 0%
0
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 6 |
Office of Scientific and Technical Information | Institution | 6 |
doaj.org OAI-PMH Repository | Institution | 5 |
Unknown Repository | Other Internet | 1 |
University of Michigan | Institution | 1 |
National Aeronautics and Space Administration | Institution | 1 |
KU Leuven | Institution | 1 |
Hospitais da Universidade de Coimbra | Institution | 1 |
DOI | Other Internet | 1 |
bioRxiv | Preprint | 1 |