Difference in Survival between Housed and Homeless individuals with HIV, San Francisco, 2002-2011

San Francisco (SF), a city with large HIV-infected and homeless populations, expanded supportive housing for HIV-infected people in 2007. We used the SF HIV/AIDS registry to compare survival between people who were homeless and who were housed at time of HIV diagnosis from 2002 through 2011. Housing status was obtained from medical records and deaths from local, state, and national vital registration. Survival was estimated using the Kaplan-Meier product-limit method. Ten percent of the 5,474 cases were homeless. Among people diagnosed between 2002 and 2006, the five-year survival was worse for people who were homeless at HIV diagnosis than for housed individuals (79% vs. 92%, p<.0001), but not for those diagnosed between 2007 and 2011 (92% vs. 93%, p=.3938). The improved survival among HIV-infected homeless people occurred during the time of increased supportive housing for this population. Our findings support including housing as an essential component of HIV care.