Objectives: This study investigates the symptomatic and interpersonal efficacy of inpatient psychodynamic psychotherapy as well as the influence of several patient- and treatment-related factors on the success of psychotherapy.
Methods: In this naturalistic study, 715 patients were assessed with the Symptom Checklist (SCL-90-R) and the Inventory of Interpersonal Problems (IIP). The influence of several patient-and treatment-related factors on the success of psychotherapy was analyzed using logistic regression.
Results: Patients improved significantly on all SCL-90-R and IIP scales. The patients' attachment style, ICD-10 diagnosis, and motivation for therapy, as well as additionally job situation for the symptomatic outcome and additionally age for the interpersonal outcome, were significant predictors of therapeutic success.
Conclusions: Patients with a secure attachment style, a diagnosis of depression, and a high motivation for therapy are more likely to experience therapeutic success than other patients. Furthermore, regular occupational activity has a positive effect on symptomatic treatment outcome, while a younger age has a positive effect on interpersonal treatment outcome.