A Controlled Evaluation of a Psychosocial Outreach Support Program for Adults with Severe Mental Illness.

Objective: Serious mental illness (SMI) remains a leading cause of disability worldwide. However, there is limited Australian evidence of community-based programs to enhance the psychosocial wellbeing of adults experiencing SMI. Foundations is a long-term community-based psychosocial outreach support program delivered in Tasmania, Australia. A longitudinal non-randomised controlled trial was conducted to examine the effectiveness of the Foundations program on adults' psychosocial functioning, clinical symptomology, and hospital readmissions, in comparison to standard care only. Method: Participants were adults aged 18-64 years experiencing SMI. Control participants received standard clinical care only. Intervention participants were engaged in the Foundations program in addition to standard care. Data were collected at program commencement, midpoint, closure, and six-months post-closure. Linear mixed modelling was used to examine differences between groups. Results: Intervention participants achieved better psychosocial functioning in comparison to the control group by program closure and at six-month follow-up. No significant differences were observed for clinical mental health symptomology or hospital readmission rates. Length of readmission stay was significantly shorter for intervention participants. Conclusions: The findings highlight the additional value of community-based, recovery-oriented, psychosocial outreach support alongside clinical mental health care to enhance the psychosocial wellbeing of adults experiencing SMI.