Introduction
Eating disorders, Bulimia nervosa, psychosomatic disorders, Anorexia nervosa, AN
Eating disorders (EDs) including Anorexia nervosa (AN) and Bulimia nervosa (BN) are severe psychosomatic disorders with lifetime prevalence among females ranging from 2–4% [EDs can be treated in a variety of treatment settings. Different treatment settings offer varying degrees of treatment intensity and treatment structure, which may influence treatment effectiveness and costs. However, there is little empirical guidance as to what is the most appropriate treatment setting for an individual patient [Several clinical guidelines exist to guide treatment decisions for EDs [As the results of randomized controlled trials (RCTs) may not always directly map the real-world situation, more outcome research in routine clinical care is needed [The present study aimed to examine patient characteristics, treatment characteristics, and short-term outcomes among women suffering from AN or BN, who were treated with CBT-based interventions according to national clinical practice treatment guidelines in nine different treatment institutions in Germany and Switzerland. The following research questions were examined: What are the differences between patients admitted to full-time treatment and patients admitted to ambulatory treatment? How much treatment and which treatment components do patients with EDs typically receive within three months after treatment initiation? Are there differences between full-time treatment and ambulatory treatment? What are short-term outcomes of guideline-based cognitive-behavioral interventions conducted in routine clinical care among patients with EDs? Which variables are associated with symptomatic improvements?