The latest updates on the OHTN Cohort Study. Published papers, upcoming changes, etc.
Backgrounder on OCS practices, policies, participants and staff.
Research subjects, data access procedures, and our most recent publications.
The OCS is proud to expand its work through collaboration with other cohorts and members of the HIV community.
Information on the founding and evolution of the OHTN Cohort Study, including our GIPA/MIPA policy.
OCS by the numbers
15 years; 5644 participants; 27,720 person-years of observation.