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Eat Disord. 2009 May-Jun;17(3):225-41. doi: 10.1080/10640260902848576.

Differential Treatment Response for Eating Disordered Patients With and Without a Comorbid Borderline Personality Diagnosis Using a Dialectical Behavior Therapy (DBT)-Informed Approach.

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Department of Psychology, John Carroll University, 20700 North Park Blvd., University Heights, OH 44118, USA.


Studies have reported conflicting findings regarding the impact on treatment for eating disorder patients comorbidly diagnosed with borderline personality disorder. The current investigation sought to investigate whether individuals diagnosed with an eating disorder vs. those comorbidly diagnosed with an eating disorder and borderline personality disorder differ on measures of eating disorders symptoms and/or general distress over the course of treatment. In light of the success of DBT in treating individuals diagnosed with borderline personality disorder, a group known to have considerable difficulties in regulating affect, the current study also sought to examine whether these two groups would differ on expectancies to regulate affect over the course of DBT-informed treatment. Results indicated that while a comorbid diagnosis of borderline personality disorder did not impact eating disorder treatment outcomes, those comorbidly diagnosed did present overall with higher levels of general distress and psychological disturbance. With respect to affect regulation, results indicated that at the beginning of treatment, eating disordered individuals who carried a comorbid diagnosis of BPD were significantly less able to regulate affect than patients without a comorbid borderline diagnosis. However, at the end of treatment there was no statistically significant difference between the two groups. The role of affect regulation in treating eating disordered individuals with a comorbid borderline personality disorder diagnosis is discussed.

[Indexed for MEDLINE]

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