http://www.sciencemag.org/news/2018/07/does-supportive-housing-help-homeless-medical-needs-not-clear-study-says

A new report questions the impact of support services that go beyond providing stable, safe shelter for the homeless.

A new report finds no evidence that efforts to provide support for the chronically homeless improve their health or reduce the cost of their care. But that doesn’t mean the U.S. government should stop funding programs that offer permanent supportive housing (PSH), say the authors of the study, conducted by a panel convened by the National Academies of Sciences, Engineering, and Medicine. Instead, the report calls for more analyses of what types of interventions work best for which populations.