Background: Homelessness is an expression and consequence of a complex problem situation that poses major challenges to the medical and social care systems in Germany. About three quarters of homeless people suffer from mental illness. The aim of this study was to investigate associations between mental illness and homelessness.
Material and methods: A secondary data analysis of patients' records from a Berlin health center for homeless people was conducted. Data from 112 homeless patients who received care at the center between the years 2006 and 2020 were included in the explorative study.
Results: Mental illness was present in 84.9% of patients before the onset of homelessness. The factors associated with an early onset of homelessness were low school education and drug abuse. A long duration of homelessness was associated with the factors alcohol abuse as well as imprisonment. Each new episode of street homelessness was associated with an average increase in the duration of homelessness by 7.9 months.
Discussion: Since mental illnesses are important factors influencing the development and maintenance of homelessness, preventive strategies as well as specialized services for this vulnerable group need to be increasingly created. In particular, recurring episodes of street homelessness should be prevented as far as possible. The link between imprisonment and homelessness suggests that more intensive support is needed for reintegration after release from prison.
