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 the healthy control (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.

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Posted 24 Jun, 2020
Received 06 Jul, 2020
On 29 Jun, 2020
On 23 Jun, 2020
Invitations sent on 23 Jun, 2020
On 22 Jun, 2020
On 22 Jun, 2020
On 17 Jun, 2020
Received 16 Jun, 2020
Received 01 Jun, 2020
On 26 May, 2020
On 22 May, 2020
Invitations sent on 21 May, 2020
On 21 May, 2020
On 20 May, 2020
On 19 May, 2020
On 19 May, 2020
On 25 Apr, 2020
Received 24 Apr, 2020
Received 24 Apr, 2020
Received 23 Apr, 2020
On 06 Apr, 2020
On 06 Apr, 2020
On 03 Apr, 2020
Invitations sent on 01 Apr, 2020
On 31 Mar, 2020
On 30 Mar, 2020
On 30 Mar, 2020
On 26 Mar, 2020
Posted 24 Jun, 2020
Received 06 Jul, 2020
On 29 Jun, 2020
On 23 Jun, 2020
Invitations sent on 23 Jun, 2020
On 22 Jun, 2020
On 22 Jun, 2020
On 17 Jun, 2020
Received 16 Jun, 2020
Received 01 Jun, 2020
On 26 May, 2020
On 22 May, 2020
Invitations sent on 21 May, 2020
On 21 May, 2020
On 20 May, 2020
On 19 May, 2020
On 19 May, 2020
On 25 Apr, 2020
Received 24 Apr, 2020
Received 24 Apr, 2020
Received 23 Apr, 2020
On 06 Apr, 2020
On 06 Apr, 2020
On 03 Apr, 2020
Invitations sent on 01 Apr, 2020
On 31 Mar, 2020
On 30 Mar, 2020
On 30 Mar, 2020
On 26 Mar, 2020
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 the healthy control (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.

Figure 1

Figure 2

Figure 3
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