[Effectiveness of out-patient systemic therapy--a multicenter study in the German speaking part of Switzerland].

The present paper describes an effectiveness-study to analyze the effectiveness of systemic treatments. In the documentation phase of two years 28 therapists documented 89 systemic therapies that have been conducted in a multi person setting. The patients represent a general population of health care takers. With an average duration of 10 appointments over 40 weeks these treatments can be judged as brief psychotherapy. Good results have been achieved within this short period of treatment. The reduction of symptoms reached middle to high effect sizes in all dimensions of the SCL-90-R. Regarding the global severity index (GSI of SCL-90-R) 22.5 % of the patients can be considered as cured and 55 % as cured or improved.