Objective

To examine sustainability of symptom outcomes of a 1-year phase-based trauma-focused, multimodal, and multicomponent group therapy in a day treatment program for posttraumatic stress disorder (PTSD) over an average period of 7 years.
Method

Iranian and Afghan patients (N = 69) were assessed with self-rated symptom checklists for PTSD, anxiety, and depression symptoms before (T1), after (T2), and up to 11 years upon completion of the treatment (T3). A series of mixed model regression analyses was applied to determine the course of the measured symptoms over time.