Conceptualisation of disorders amongst the public as well as service delivery are in some undefined way related to outcome in a naturalistic long term multicenter study, as the Danish National Schizophrenia project. DNS was planned from 1995-1997. Patients were included from 1997-1999. The follow up took place until 2004. At the same time important changes took place in the service delivery. This might affectlong term outcome. Denmark is a fairly small and uniform country so dissemination of knowledge, formally as well as informally, spread quickly.

To describe changes in mental health service delivery, during the 10 years from 1995-2004. To compare delivery of services between the different centers in the study such as beds available, and outpatient services available. To compare basic features as DUP between the centers, and to look at use of services in terms of use of beds, and use of outpatient services between the centers.

A lot of local publicity was attached raising awareness of detection and intervention in these years. This affects of course Treatment as Usual (TAU). Comparison of outcome between the centers participating in DNS show no great differences pointing to a consensus of best practise.