Risk factors associated with multi-dimensional stigma among people living with HIV/AIDS who are homeless/unstably housed.

Background: Stigma may serve as a barrier to HIV care among homeless living with HIV/AIDS (PLWHA). The role of layered stigma related to the syndemic of homelessness, mental health, and substance use among PLWHA has not been examined. We explored the syndemic of HIV, homelessness, mental health, and substance use, as well as perceived and experienced provider stigma.