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Evaluating whether a peer-led dissonance-based eating disorder prevention program prevents onset of each eating disorder type
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Journal Article
Evaluating whether a peer-led dissonance-based eating disorder prevention program prevents onset of each eating disorder type
2023
Overview
This study tested whether the dissonance-based
eating disorder prevention program reduced onset of subthreshold/threshold anorexia nervosa (AN), bulimia nervosa (BN), binge eating disorder (BED), and purging disorder (PD) over long-term follow-up.
Data were combined from three prevention trials that targeted young women at high-risk for eating disorders (
= 1092;
age = 19.3). Participants were randomized to
groups led by peer educators or expressive writing/educational controls and completed masked diagnostic interviews over 2- to 4-year follow-ups. Logistic regressions tested whether onset of each eating disorder over follow-up differed between
and control participants.
Peer-led
groups produced a 46% reduction in onset of subthreshold/threshold BN and a 62% reduction in onset of PD relative to controls over follow-up. Rates of onset of subthreshold/threshold AN and BED did not significantly differ between peer-led
participants and control participants.
Results support the dissemination of the peer-led
for reducing future onset of BN and PD. This study and recent research suggest that thin-ideal internalization, the risk factor for eating disorders targeted in the
, may be more relevant for predicting onset of BN and PD compared to AN and BED. Findings support the development of a version of the
aimed to reduce risk factors that have predicted future onset of all four types of eating disorders (e.g. overvaluation of weight/shape, fear of weight gain), which may more effectively prevent all eating disorder types.
Publisher
Cambridge University Press
Subject
/ Anorexia
/ Anorexia Nervosa - diagnosis
/ Anorexia Nervosa - prevention & control
/ Binge-Eating Disorder - diagnosis
/ Binge-Eating Disorder - prevention & control
/ Bulimia
/ Bulimia Nervosa - prevention & control
/ Feeding and Eating Disorders - prevention & control
/ Female
/ Humans
/ Original
/ Peers
/ Purging
/ Teachers
