Given that most young women with eating disorders do not receive treatment, implementing effective prevention programs is a public health priority. The Body Project is a group-based eating disorder prevention program with evidence of both efficacy and effectiveness. This trial evaluated the efficacy of this prevention program with Brazilian girls, as no published study has tested whether this intervention is culturally sensitive and efficacious with Latin-American adolescents. Female students were allocated to a dissonance-based intervention (n = 40) or assessment-only (n = 22) condition. The intervention was a dissonance-based program, consisted of four group sessions aimed to reduce thin-ideal internalization. The sessions included verbal, written, and behavioral exercises. The intervention group was evaluated at pretest and posttest; assessment-only controls completed measures at parallel times. Compared to assessment-only controls, intervention participants showed a significantly greater reduction in body dissatisfaction, sociocultural influence of the media, depressive symptoms, negative affect, as well as significantly greater increases in body appreciation. There were no significant effects for disordered eating attitudes and eating disorder symptoms. These results suggest that this dissonance-based eating disorder prevention program was culturally sensitive, or at least culturally adaptive, and efficacious with Brazilian female adolescents. Indeed, the average effect size was slightly larger than has been observed in the large efficacy trial of this prevention program and in recent meta-analytic reviews. RBR-7prdf2 . Registered 13 August 2018 (retrospectively registered).

中文翻译：

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与巴西女孩进行的基于不和谐饮食失调预防计划的对照试验

鉴于大多数患有饮食失调症的年轻妇女没有得到治疗，因此实施有效的预防计划是公共卫生的重点。身体项目是一项基于人群的饮食失调预防计划，具有有效性和有效性的证据。该试验评估了该预防方案对巴西女童的疗效，因为尚未发表任何研究测试该干预措施是否对拉丁美洲青少年具有文化敏感性和有效性。女学生被分配到基于不和谐的干预（n = 40）或仅评估（n = 22）的条件。干预是一个基于不和谐的计划，包括四个小组会议，旨在减少精简理想的内部化。这些课程包括口头，书面和行为练习。干预组在测试前和测试后进行了评估；仅评估控制在并行时间完成的度量。与仅进行评估的对照相比，干预参与者的身体不满，媒体的社会文化影响，抑郁症状，负面影响以及身体欣赏的增加明显更大。饮食失调和饮食失调症状无明显影响。这些结果表明，这种基于不和谐的饮食失调预防方案具有文化敏感性，或者至少具有文化适应性，并且对巴西女性青少年有效。确实，平均效应大小比该预防计划的大型功效试验和最近的荟萃分析评论中观察到的稍大。RBR-7prdf2。已于2018年8月13日注册（追溯注册）。