Purpose of review Our aim is to give an overview of the recent literature on psychological treatment for young adults and adults with anorexia nervosa and to discuss the implications of the findings for clinical practice. Recent findings Three systematic reviews and meta-analyses have recently been published on psychological treatments for anorexia nervosa. Treatment outcomes are still modest and mainly focus on weight outcome, although outcomes for eating disorder disease and quality of life have also been reported. Adhering to a treatment protocol might lead to faster and better results. Summary For children and adolescents with anorexia nervosa, the major guidelines recommend a family-based treatment. The treatments of choice for young adults and adults with anorexia nervosa are the Maudsley Anorexia Nervosa Treatment for Adults (MANTRA), Cognitive Behaviour Therapy-Enhanced (CBT-E) and Specialist Supportive Clinical Management (SSCM), but none of these treatments seem to be superior. In search of other ways to improve outcome, shared decision making may be a way to help patients become more involved in their treatment, enhance their motivation and consequently improve the outcome.

Objectives: Anorexia Nervosa (AN) is a severe psychiatric disorder and knowledge about the costeffectiveness of potential interventions is limited. The aim of this paper is to introduce the Trimbos Institute health economic cost-effectiveness model for Anorexia Nervosa (AnoMod-TI), a flexible modeling tool for assessing the long-term cost-effectiveness of interventions for AN in late adolescent and adult patients, which could support clinical decision making. Methods: AnoMod-TI is a state-transition cohort simulation (Markov) model developed from a Dutch societal perspective, which consists of four health states -namely full remission (FR), partial remission (PR), AN and death. Results are expressed as total healthcare costs, QALYs and incremental cost-effectiveness ratio. Results: For the purpose of demonstrating AnoMod-TI and how it could be used to estimate costeffectiveness over a 20-year time horizon, it was applied to a hypothetical treatment scenario. Results illustrate how a relatively costly intervention with only modest effects can still be cost-effective in the long term. Conclusions: AnoMod-TI can be used to examine long-term cost-effectiveness of various interventions aimed at either treating AN or preventing relapse from a state of partial or full remission. AnoMod-TI is freely available upon request to the authors.