Coexisting severe mental illness and substance misuse: community health and social care services

Needs assessment:- In the UK, how prevalent is coexisting severe mental illness with substance misuse and what are the physical health, social care, housing or other support needs of people with this diagnosis?

What works? In the UK, how effective and cost effective are service delivery interventions such as peer support, contingency management or text messaging delivered alone or in combination (in conjunction with standard care) compared with standard care alone for young people and adults with coexisting severe mental illness and substance misuse?

Costing tool:- Which elements of health, social care or other support services work best at a local level and provide the best 'value for money' to address the needs of young people and adults with coexisting severe mental illness and substance misuse?

Barriers and facilitators:- What are the barriers and facilitators for young people and adults with coexisting severe mental illness and substance misuse to obtain an optimal service (including optimal time frame for delivering interventions) to meet their needs and enable their recovery?

Care pathway:- In the UK, what is the optimal care pathway for young people and adults with coexisting severe mental illness and substance misuse?