Background: Enhanced cognitive behavioral therapy (CBT-E) is a promising treatment option for outpatients with anorexia nervosa (AN). We aimed to determine the effectiveness of CBT-E as a standard treatment for adult outpatients with AN from the specialized eating-disorder unit of a public hospital with responsibilities to their catchment area.
Methods: This study had an open, longitudinal design. Thirty three (of planned 100) outpatients aged > 16 years suffering from AN were included to receive 40 sessions of CBT-E. Eating-disorder psychopathology and body mass index (BMI) were assessed before and after treatment, while comorbid psychiatric symptoms and trauma experiences were evaluated at the baseline, and therapeutic alliance was assessed after 4 weeks of treatment.
Results: A high proportion (69%) of patients dropped out of the treatment. Patient recovery was considered when they reached BMI > 18.5 and Eating Disorder Examination Questionnaire (EDE-Q) score < 2.5, and 27% of all patients recovered.
Conclusions: Patients who completed the treatment had mostly satisfactory outcomes. Considering the high dropout rate, it is necessary to improve the strategies for engaging patients in therapy. Several aspects of CBT-E as a standard treatment are discussed regarding the high dropout rate. Trial registration ClinicalTrials.gov. Identifier: NCT02745067. Registered: April 20, 2016. https://clinicaltrials.gov/ct2/showNCT02745067.
Keywords: Anorexia nervosa; CBT-E; Enhanced cognitive behavioral therapy; Treatment dropout.
Anorexia nervosa (AN) is difficult to treat, and no specific treatment approach has been demonstrated to be superior for adult outpatients. However, outcome data indicate that enhanced cognitive behavioral therapy (CBT-E) is a viable and promising treatment option for adults with AN, and its efficacy has been indicated in cohort studies and randomized controlled trials. The present study aimed to determine the effectiveness of CBT-E as a standard treatment for adult outpatients with AN from the specialized eating-disorder unit of a public hospital with responsibilities to their catchment area. Outpatient CBT-E was administered to 33 patients in a course of 40 sessions. Although 27% of the included patients had satisfactory treatment outcomes (healthy weights and reduced eating-disorder symptoms), more than two-thirds of all patients terminated treatment early. Several aspects of CBT-E as a standard treatment are discussed regarding this high dropout rate.
© 2022. The Author(s).