A non-randomised controlled trial of a community-based accommodation and psychosocial support programme for adults experiencing mental illness and homelessness.

Background: The transition out of inpatient mental health is a crucial time for adults experiencing concurrent mental illness and homelessness, yet evidence regarding effective support options is mixed. Choices is an intensive 3-month psychosocial outreach and crisis accommodation support programme for adults experiencing mental illness and homelessness, delivered by Baptcare in Tasmania, Australia. This study examined the effect of Choices on adults' psychosocial functioning, clinical symptomology and psychiatric readmissions in comparison to standard care only.

Method: Participants were adults aged 18-64 years experiencing mental illness and homelessness, recruited upon discharge from a psychiatric admission. Intervention participants (n = 124) received the Choices programme. Control participants (n = 122) received standard care, clinical assessment and treatment from hospital-based Mental Health Services. Outcomes were psychosocial functioning (primary), clinical symptomology, hospital readmission rate and readmission length of stay. Outcomes were assessed at programme commencement and closure (3 months) and 3 months post-closure (intervention group only). Analysis of covariance was used to analyse differences between groups at closure, while controlling for baseline differences.

Results: Intervention participants had significantly improved social functioning (encompassing living conditions, social relationships, self-esteem/confidence), overall psychosocial functioning, symptoms of depression and anxiety and shorter hospital readmission length of stay in comparison to the control group. Intervention participants experienced further improvements in social and overall psychosocial functioning 3 months post-closure.

Conclusion: The Choices programme is effective in enhancing the psychosocial functioning of adults experiencing concurrent mental illness and homelessness. These findings support the ongoing delivery of this combined accommodation and wrap-around psychosocial model of intensive support.