Seek, Test, Treat and Retain (STTR) Collaboration Project Series

The Seek, Test, Treat and Retain (STTR) Collaboration Project Series includes data from over 20 studies across seven countries in the field of HIV and substance use. The studies were individually developed but were chosen for the collaboration because they focused on one or more steps of the HIV treatment cascade: Seek, Test, Treat and Retain. All of the studies included a shared instrument with common domains. The studies include harmonized data from several of these domains, including: adherence; CD4 and viral load; criminal justice status and criminal justice risk score; criminal justice supervision status; demographic characteristics; HIV risk behaviors; HIV status; mental health; and substance use.