Eating disorders among borderline patients: understanding the prevalence and psychopathology
Abstract Background: Common comorbidity and the shared psychopathology in borderline personality disorder (BPD) and feeding and eating disorder (FED) resulted in conceptualization of the relationship theory between disordered eating behaviors (DEB), alexithymia, depression, and anxiety. Therefore, the present study aims at investigating the FED prevalence in patients with BPD and evaluating the relationship between DEB, alexithymia, anxiety, and depression.Methods: This cross-sectional study was performed from August 2018 to November 2019; 110 patients with BPD and 110 healthy people were studied in this research. The participants were selected by systematic random sampling out of the patients referring to Baharan psychiatric hospital in Zahedan, Iran, with the sampling interval of 3. The subjects were evaluated by demographic data form, the 26-item eating attitudes test (EAT-26), 20-item Toronto alexithymia scale (TAS-20), Beck anxiety disorder (BAI), and Beck depression inventory-II (BDI-II).Results: The results show a 65.4% (n = 72) prevalence of FED in borderline patients; the highest and lowest prevalence rates are reported for avoidant/restrictive food intake disorder (ARFID) and bulimia nervosa, respectively. The highest mean score of TAS-20 is reported in anorexia nervosa. The regression analysis results show that anxiety and depression play a mediating role in the relationship between alexithymia and DEB.Conclusions: The results suggest that alexithymia should be paid clinical attention as a trait and distress-independent construct in the BPD and FED comorbidity.