Intervention to address homelessness and all-cause and suicide mortality among unstably housed US Veterans, 2012-2016.

The use of homeless services among Veterans reporting housing instability was significantly associated with reduced hazards of all-cause and suicide mortality. Addressing suicide prevention and homelessness together-and ensuring 'upstream' interventions-within the context of the VHA healthcare system holds promise for preventing suicide deaths among Veterans. Mental health treatment is critical for suicide prevention, but future research should investigate if social service programmes, by addressing unmet human needs, may also reduce suicide.