Borderline personality disorder (BPD) is highly comorbid with eating disorders (EDs), and comorbid ED-BPD is associated with a worse clinical presentation and treatment outcomes. Understanding how BPD symptoms manifest in the daily lives of those with EDs and predict momentary ED symptoms has important treatment implications. This study: (a) compared the nine BPD symptoms, assessed across 14 days, in individuals with comorbid ED-BPD, only an ED, and no ED; and (b) examined average and momentary relationships between BPD symptoms and specific ED symptoms (i.e., binge eating, purging, restriction, and maladaptive exercise) in women with EDs. Individuals with comorbid ED-BPD (n = 60), only an ED (n = 114), and controls (n = 47) completed 14 days of ecological momentary assessment. All BPD symptoms except affective instability were more common in individuals with comorbid ED-BPD than those with only an ED. Affective instability and paranoia/dissociation had the largest effect sizes, indicating the greatest differences across groups. Individuals with more frequent abandonment avoidance, anger, identity disturbance, paranoia/dissociation, and self-harm over the 14 days engaged in more frequent binge eating, while those with greater emptiness engaged in more frequent restriction and maladaptive exercise. Momentary affective instability predicted an increased likelihood of binge eating, while momentary interpersonal difficulties predicted a decreased likelihood of binge eating, at the next prompt. This study highlights the importance of considering BPD symptoms in the treatment of individuals with EDs to improve their clinical outcomes and quality of life. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

中文翻译：

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捕捉患有饮食失调的女性在日常生活中边缘性人格障碍症状的经历。


边缘性人格障碍 (BPD) 与饮食失调 (ED) 高度共存，共病 ED-BPD 与较差的临床表现和治疗结果相关。了解 BPD 症状在 ED 患者日常生活中的表现并预测短暂的 ED 症状具有重要的治疗意义。本研究：(a) 比较了患有 ED-BPD 的个体、仅有 ED 和无 ED 的 9 种 BPD 症状，并在 14 天内进行了评估； (b) 检查患有 ED 的女性 BPD 症状与特定 ED 症状（即暴食、净化、限制和适应不良运动）之间的平均和瞬时关系。患有 ED-BPD 共病的个体 (n = 60)、仅有 ED 的个体 (n = 114) 和对照组 (n = 47) 完成了 14 天的生态瞬时评估。除情感不稳定外，所有 BPD 症状在合并 ED-BPD 的个体中比仅患有 ED 的个体更常见。情感不稳定和偏执/解离的影响最大，表明各组之间的差异最大。在 14 天内，更频繁地回避遗弃、愤怒、身份障碍、偏执/分离和自残的人会更频繁地暴饮暴食，而那些更空虚的人会更频繁地进行限制和适应不良的锻炼。短暂的情感不稳定预示着暴食的可能性增加，而短暂的人际关系困难则预示着在下一个提示下暴食的可能性会降低。这项研究强调了在治疗 ED 患者时考虑 BPD 症状的重要性，以改善他们的临床结果和生活质量。 （PsycInfo 数据库记录 (c) 2024 APA，保留所有权利）。