Background Treatment protocols can be bolstered and etiological and maintenance factors can be recognized more easily by a superior understanding of emotions and emotion regulation in the comorbidity of borderline personality disorder (BPD) and feeding and eating disorders (FEDs). Therefore, the present study aimed at investigating the prevalence and psychopathology of FEDs in patients with BPD. Methods In this cross-sectional study, 220 participants were examined in three groups, namely BPD ( n = 38), BPD + FEDs ( n = 72), and healthy controls ( n = 110), from August 2018 to November 2019. The participants were selected by systematic random sampling among the patients who referred to Baharan psychiatric hospital in Zahedan, Iran, with the sampling interval of 3. The subjects were evaluated by 28-item General Health Questionnaire (GHQ-28), Borderline Personality Inventory (BPI), Structured Clinical Interview for DSM-5 Personality Disorders (SCID-5-PD), Structured Clinical Interviews for DSM-5: Research Version (SCID-5-RV), the 26-item Eating Attitudes Test (EAT-26), 20-item Toronto Alexithymia Scale (TAS-20), Beck Anxiety Inventory (BAI), and Beck Depression Inventory-II (BDI-II). Results The results showed a 65.4% ( n = 72) prevalence of FEDs in patients with BPD. Also, the highest and lowest prevalence rates were reported for other specified feeding and eating disorders (51.3%) and bulimia nervosa (6.9%), respectively. Although the highest mean score of TAS-20 was related to anorexia nervosa, there was no significant difference between the scores of various types of FEDs. The mediation analysis showed that anxiety and depression would play a mediating role in the relationship between alexithymia and eating-disordered behaviors. Conclusions The results have suggested that alexithymia, anxiety, and depression should receive clinical attention as potential therapeutic targets in the comorbidity of BPD and FEDs. The clinical implications of the research have been conducted to date, and directions for future research have been discussed.

中文翻译：

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边缘型人格障碍患者的饮食失调：了解患病率和精神病理学

背景 通过对边缘性人格障碍 (BPD) 和进食和进食障碍 (FED) 共病中的情绪和情绪调节的更好理解，可以支持治疗方案，并且可以更容易地识别病因和维持因素。因此，本研究旨在调查 BPD 患者中 FED 的患病率和精神病理学。方法 在这项横断面研究中，从 2018 年 8 月到 2019 年 11 月，对 220 名参与者进行了检查，分为三组，即 BPD（n = 38）、BPD + FED（n = 72）和健康对照组（n = 110）。参与者是通过系统随机抽样在伊朗扎赫丹巴哈兰精神病院转诊的患者中选择的，抽样间隔为 3。受试者通过 28 项一般健康问卷 (GHQ-28) 进行评估，边缘人格量表 (BPI)、DSM-5 人格障碍结构化临床访谈 (SCID-5-PD)、DSM-5 结构化临床访谈：研究版 (SCID-5-RV)、26 项饮食态度测试 ( EAT-26)、20 项多伦多述情障碍量表 (TAS-20)、贝克焦虑量表 (BAI) 和贝克抑郁量表-II (BDI-II)。结果 结果显示，BPD 患者的 FED 患病率为 65.4% (n = 72)。此外，其他特定喂养和进食障碍（51.3%）和神经性贪食症（6.9%）的患病率最高和最低。虽然TAS-20的最高平均分与神经性厌食症有关，但各类型FED的得分无显着差异。中介分析表明，焦虑和抑郁在述情障碍与进食障碍行为的关系中起中介作用。结论结果表明，述情障碍、焦虑和抑郁作为 BPD 和 FED 共病的潜在治疗靶点应受到临床关注。迄今为止，该研究的临床意义已经进行，并且已经讨论了未来研究的方向。