A Randomized Controlled Trial of an Interactive Non-Stigmatizing Intervention to Prevent Eating Disorders in Youths Through Strengthening of Protective Factors

Research area and aims: Eating disorders (EDs) are common and cause significant morbidity and mortality. Due to stigma, only 25% seek help and only 50% fully recover after receiving treatments. Large-scale prevention is urgently needed to reduce the emergence and burden of EDs at a population level. However, current prevention programs do not meet requirements for efficient and economically attractive large-scale implementation. The main aim of this project is to investigate the efficacy and cost-effectiveness of a scalable, brief, and interactive prevention program based on reinforcement of protective factors against EDs using a randomized controlled design. A focus on protective factors disrupts the processes by which risk factors increase the probability for EDs to emerge and minimizes the risks for stigmatization. Research questions: 1. How effective is an internet-based prevention program, that reinforces protective factors against EDs, in reducing the onset of EDs 6, 12, 24, and 36 months post-intervention? 2. Does the intervention reduce the incidence of EDs through enhancement of specifically targeted protective factors (mediators)? 3. Is prevention of EDs based on reinforcement of protective factors cost-effective? 4. How do the participant experience their participation in these two interventions? Other research questions concern gender differences in enrollment and compliance, potential moderators of outcome, participation in booster sessions, and potential risk for stigma.