[Therapeutic Effort in Inpatient or Day Patient Treatments and Therapy Success in Patients with Depressive Disorders].

Several therapeutic treatments like individual psychotherapy, group therapy, creative therapies and talks with the nursing staff are components in an inpatient psychosomatic (psychotherapeutic) treatment or a psychosomatic day hospital treatment. In Germany, these therapies have to be documented by the administration with so called OPS-Codes. These codes are reported to the Institute for Reimbursement in Hospitals (InEK). With the data of the INDDEP-study it should be investigated how the therapies of 7 hospitals and 8 day-hospitals compare to each other. In addition, it should be studied, if the amount of the documented therapies is connected to the outcome in these hospitals. In the INDDEP-study, data of patients with major depression were assessed at 4 measurement points (admission, discharge, 3 months and 12 months follow up). In addition, the OPS codes of the treatments were documented. The results show that it is possible to get a rough estimation of the psychotherapeutic doses by the OPS-codes. The results show significant differences between the hospitals in terms of the intensity and professional group composition of the treatments. This result is confirmed for in-patient and day hospital treatments. Correlation analyses showed no significant correlation between the total amount of therapy and the improvement in depressive symptoms. It is assumed that there are moderating variables (patient-, therapy and process-related) which moderate the relation between doses and outcome. This should be identified in further studies.