Inpatient treatment for anorexia nervosa: a systematic review of randomized controlled trials.

Background: Anorexia nervosa (AN) is a serious psychiatric disease. Choice of acute inpatient care for AN is driven by the severity of symptoms and the level of risk to the patient. Inpatient hospitalization of patients with AN typically includes a behavioral weight gain protocol that is designed to address the core features of the disorder: weight, appetite, and distorted thoughts and behavior.