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Med."],"published-print":{"date-parts":[[2023,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S0033291723000739_sec_a1\"><jats:title>Background<\/jats:title><jats:p>This study tested whether the dissonance-based <jats:italic>Body Project<\/jats:italic> 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.<\/jats:p><\/jats:sec><jats:sec id=\"S0033291723000739_sec_a2\" sec-type=\"methods\"><jats:title>Methods<\/jats:title><jats:p>Data were combined from three prevention trials that targeted young women at high-risk for eating disorders (<jats:italic>N<\/jats:italic> = 1092; <jats:italic>M<\/jats:italic> age = 19.3). Participants were randomized to <jats:italic>Body Project<\/jats:italic> 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 <jats:italic>Body Project<\/jats:italic> and control participants.<\/jats:p><\/jats:sec><jats:sec id=\"S0033291723000739_sec_a3\" sec-type=\"results\"><jats:title>Results<\/jats:title><jats:p>Peer-led <jats:italic>Body Project<\/jats:italic> 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 <jats:italic>Body Project<\/jats:italic> participants and control participants.<\/jats:p><\/jats:sec><jats:sec id=\"S0033291723000739_sec_a4\" sec-type=\"conclusions\"><jats:title>Conclusions<\/jats:title><jats:p>Results support the dissemination of the peer-led <jats:italic>Body Project<\/jats:italic> 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 <jats:italic>Body Project<\/jats:italic>, 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 <jats:italic>Body Project<\/jats:italic> 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.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s0033291723000739","type":"journal-article","created":{"date-parts":[[2023,4,11]],"date-time":"2023-04-11T10:11:32Z","timestamp":1681207892000},"page":"7214-7221","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":8,"title":["Evaluating whether a peer-led dissonance-based eating disorder prevention program prevents onset of each eating disorder type"],"prefix":"10.1017","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9963-7316","authenticated-orcid":false,"given":"Laura","family":"D'Adamo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ata","family":"Ghaderi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul","family":"Rohde","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeff M.","family":"Gau","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heather","family":"Shaw","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eric","family":"Stice","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2023,4,11]]},"reference":[{"key":"S0033291723000739_ref33","doi-asserted-by":"publisher","DOI":"10.1016\/j.brat.2009.04.007"},{"key":"S0033291723000739_ref10","doi-asserted-by":"publisher","DOI":"10.1080\/10640266.2019.1644797"},{"key":"S0033291723000739_ref45","doi-asserted-by":"publisher","DOI":"10.1037\/0022-006X.75.1.20"},{"key":"S0033291723000739_ref48","doi-asserted-by":"publisher","DOI":"10.1037\/abn0000400"},{"key":"S0033291723000739_ref50","doi-asserted-by":"publisher","DOI":"10.1001\/archgenpsychiatry.2011.22"},{"key":"S0033291723000739_ref13","doi-asserted-by":"publisher","DOI":"10.1097\/chi.0b013e31815cd9cf"},{"key":"S0033291723000739_ref22","doi-asserted-by":"publisher","DOI":"10.1080\/10640260590918955"},{"key":"S0033291723000739_ref24","doi-asserted-by":"publisher","DOI":"10.1037\/a0032585"},{"key":"S0033291723000739_ref16","doi-asserted-by":"publisher","DOI":"10.1097\/01.PSY.0000073871.67679.D8"},{"key":"S0033291723000739_ref20","doi-asserted-by":"publisher","DOI":"10.1016\/j.jadohealth.2018.09.023"},{"key":"S0033291723000739_ref4","volume-title":"Diagnostic and statistical manual of mental disorders, DSM-IV-TR","year":"2000"},{"key":"S0033291723000739_ref26","doi-asserted-by":"publisher","DOI":"10.1097\/YCO.0000000000000541"},{"key":"S0033291723000739_ref1","doi-asserted-by":"publisher","DOI":"10.1007\/s00787-011-0231-z"},{"key":"S0033291723000739_ref14","first-page":"317","volume-title":"Binge eating: Nature, assessment, and treatment","author":"Fairburn","year":"1993"},{"key":"S0033291723000739_ref9","doi-asserted-by":"publisher","DOI":"10.1016\/j.brat.2015.08.008"},{"key":"S0033291723000739_ref43","doi-asserted-by":"publisher","DOI":"10.1037\/ccp0000697"},{"key":"S0033291723000739_ref41","doi-asserted-by":"publisher","DOI":"10.1037\/0022-006X.76.2.329"},{"key":"S0033291723000739_ref23","doi-asserted-by":"publisher","DOI":"10.1037\/hea0000438"},{"key":"S0033291723000739_ref38","doi-asserted-by":"publisher","DOI":"10.1037\/abn0000666"},{"key":"S0033291723000739_ref44","doi-asserted-by":"publisher","DOI":"10.1016\/j.cpr.2021.102046"},{"key":"S0033291723000739_ref46","doi-asserted-by":"publisher","DOI":"10.1037\/ccp0000493"},{"key":"S0033291723000739_ref53","volume-title":"Twin cities public television","year":"2000"},{"key":"S0033291723000739_ref39","doi-asserted-by":"publisher","DOI":"10.1037\/abn0000219"},{"key":"S0033291723000739_ref12","doi-asserted-by":"publisher","DOI":"10.1023\/A:1005853720926"},{"key":"S0033291723000739_ref42","doi-asserted-by":"publisher","DOI":"10.1037\/a0016481"},{"key":"S0033291723000739_ref30","doi-asserted-by":"publisher","DOI":"10.1002\/eat.20282"},{"key":"S0033291723000739_ref40","doi-asserted-by":"publisher","DOI":"10.1037\/a0030679"},{"key":"S0033291723000739_ref11","volume-title":"Influence; 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