“…Homeless people with multiple diagnoses have greater mental health needs and worse general health determinants ( 9 , 13 ). A general synthesis of the prevalence of comorbid psychiatric disorders in homeless patients, according to reports reveals the following figures: psychotic disorders among 4.4%–57% ( 8 , 13 , 14 , 16 ); major depression among 11.4% ( 8 ); bipolar disorders among 11.4%–17.5% ( 8 , 16 ); alcohol dependence among 14.3%–37.9% ( 8 , 13 , 14 , 16 ); drug dependence among 14.3%–34% ( 8 , 13 , 14 , 16 ); acute stress reaction among 23%–24% ( 13 , 14 ); and anxiety disorder among 2.3% ( 16 ). These references are based on studies carried out in the USA, France, Japan, Portugal, and Germany.…”