[Housing Situation Among People with Substance Use Disorder in a Psychiatric Centre in Berlin, Germany - A Cross-Sectional Patient Survey].

Objective: To investigate the housing situation, service use and substance use among patients with substance use disorders seeking psychiatric treatment.

Methods: Structured interview among 540 psychiatric inpatients including day clinics in a psychiatric centre in Berlin, Germany.

Results: Patients under instable housing conditions were significantly more often diagnosed with a comorbid psychotic disorder and were significantly younger when first psychiatric or substance use treatment occurred, on average before onset of homelessness.