“…For instance, research from the National Vietnam Veterans Readjustment Study indicates that those who experienced stress in a war zone had more readjustment problems and that stress and readjustment problems were stronger predictors of homelessness than exposure to war zones alone (Kulka et al, 1990). Similarly, adverse effects of PTSD, including substance abuse, interpersonal difficulties, and unemployment, were associated with veterans' homelessness (Rosenheck, Leda, and Gallup, 1992). As for nonveteran populations, extreme poverty and social isolation are also risk factors for homelessness (Rosenheck, Kasprow, and Seibyl, 2004).…”