title: Service provision for mentally disordered homeless people.
abstract: OBJECTIVE
  Mentally ill homeless persons are among the most neglected or marginalized patient groups. Their needs for mental healthcare are widely unmet. The current economic crisis probably accelerates the social decline and deterioration of physical and mental health in high-risk groups worldwide and increases the need for appropriate treatments, services, and prevention strategies.
  
  
  RESULTS
  Research on service provision for mentally disordered homeless people (from 2010 to 2012) covers the following issues: epidemiology of mental ill health among homeless persons, service delivery and healthcare utilization, specific treatments, specific high-risk groups among homeless persons, and subjective experience with mental health service provision.
  
  
  CONCLUSIONS
  The number of studies published on these issues between 2010 and 2012 may suggest an awareness for the need for adequate service provision of this marginalized clientele. Research evidence is still not sufficient. The majority of studies are from the United States. The methodological quality of the studies is still moderate, being descriptive in nature or applying qualitative approaches to small samples. Included are usually easy to access patients from inner-city regions. There is an encouraging trend to focus on younger age groups that supports the focus on primary or secondary prevention strategies for homelessness and mental disorders.
authors.affiliation: Central Institute of Mental Health, Medical Faculty Mannheim/University of Heidelberg, Mannheim, Germany.
authors.forename: Hans J
authors.initials: HJ
authors.lastname: Salize
authors.forename: Amelie
authors.initials: A
authors.lastname: Werner
authors.forename: Christian O
authors.initials: CO
authors.lastname: Jacke
mesh_terms: D019033:Delivery of Health Care, Integrated / Q000592:standards; D006297:Health Services Accessibility / Q000592:standards; D006703:Ill-Housed Persons; D006801:Humans; D001523:Mental Disorders / Q000628:therapy*; D008605:Mental Health Services / Q000458:organization & administration / Q000592:standards* / Q000706:statistics & numerical data; D012947:Social Work / Q000458:organization & administration