Approximately 20-30 % of individuals with the eating disorder anorexia nervosa develop an enduring form of the illness. In this study a new treatment for patients with severe and enduring anorexia nervosa was described. The treatment is flexible and aims at enhancing quality of life. The participants consisted of all referrals resulting in an assessment or treatment period at the unit between May 2017 and May 2022. The study was a registry study. Information regarding patient characteristics, treatment goals, and the course of treatment was gathered from medical records.

Inclusion criteria:

• Age ≥ 18 years
• A referral resulting in an assessment or treatment period at the unit for patients with severe and enduring anorexia nervosa at the HUS Helsinki University Hospital between May 2017 and May 2022.

Adult women with severe and enduring anorexia nervosa.