OBJECTIVE Test whether a group-delivered dissonance-based transdiagnostic eating disorder treatment, Body Project Treatment (BPT), produces greater reductions in eating disorder symptoms and higher abstinence from eating disorder behaviors and remittance from eating disorder diagnoses than group-delivered transdiagnostic interpersonal psychotherapy (IPT). METHOD Women with a range of eating disorders (N = 73) were randomized to 8-week group-implemented BPT or IPT and completed surveys and masked diagnostic interviews at pretest, posttest, and 6-month follow-up. RESULTS Participants randomized to BPT versus IPT showed significantly greater reductions in eating disorder symptoms (d = -.75), pursuit of the thin ideal (d = -.87), anxiety symptoms (d = -.76), and social impairment (d = -.59) through 6-month follow-up. By end of treatment, participants randomized to the BPT versus IPT did not significantly differ on abstinence from binge eating and purging (49% vs. 40%, respectively) or remittance from eating disorder diagnoses (54% vs. 40%, respectively). Participants randomized to BPT versus IPT did not differ significantly in average session attendance (5.8 vs. 6.9, respectively) or average homework assignments completed (4.6 vs. 5.6, respectively). The within-condition reductions in eating disorder symptoms for BPT did not significantly differ when implemented in person versus via synchronous video telepsychiatry (d = -1.39 vs. -1.09, respectively), though these effects should be considered preliminary because of the small cell sizes. CONCLUSIONS The evidence that BPT produces greater reductions in eating disorder symptoms, pursuit of the thin ideal, anxiety symptoms, and social impairment than IPT is encouraging because it provides some assurance that the effects are present equating for the effects of expectancies, demand characteristics, and nonspecific factors. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

中文翻译：

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两组进行跨诊断饮食失调治疗的随机试验：基于失调的治疗与人际心理治疗。

目的 测试团体提供的基于失调的跨诊断性饮食失调治疗——身体项目治疗（BPT）是否比团体提供的跨诊断人际心理治疗能更大程度地减少饮食失调症状、提高对饮食失调行为的戒断和饮食失调诊断的汇款（异质性治疗）。方法 患有一系列饮食失调的女性 (N = 73) 被随机分配接受为期 8 周的小组实施的 BPT 或 IPT，并在测试前、测试后和 6 个月的随访中完成调查和隐蔽诊断访谈。结果 随机接受 BPT 与 IPT 的参与者在饮食失调症状 (d = -.75)、追求瘦身理想 (d = -.87)、焦虑症状 (d = -.76) 和社交障碍 (d = -.76) 方面表现出显着更大的减少。 d = -.59）通过 6 个月的随访。治疗结束时，随机接受 BPT 与 IPT 的参与者在戒除暴食和清除暴食（分别为 49% 和 40%）或从饮食失调诊断中汇款（分别为 54% 和 40%）方面没有显着差异。随机接受 BPT 与 IPT 的参与者在平均会议出勤率（分别为 5.8 与 6.9）或完成的平均家庭作业（分别为 4.6 与 5.6）方面没有显着差异。当亲自实施与通过同步视频远程精神病学实施时，BPT 饮食失调症状的条件内减少没有显着差异（分别为 d = -1.39 和 -1.09），但由于细胞尺寸较小，这些效果应被视为初步效果。结论 BPT 比 IPT 更能减少饮食失调症状、追求瘦身理想、焦虑症状和社交障碍，这一点令人鼓舞，因为它在一定程度上保证了效果的存在，等同于预期、需求特征和社交障碍的效果。非特异性因素。（PsycInfo 数据库记录 (c) 2023 APA，保留所有权利）。