The prevalence of comorbid posttraumatic stress disorder in personality disorders

Background: A large number of studies have been conducted on the topic of comorbid posttraumatic stress disorder (PTSD) in borderline personality disorder (BPD), however, there is hardly any research that examines the comorbidity rate of PTSD in non-BPD personality disorders (PDs). Knowledge about all clusters of PDs in terms of comorbid PTSD is needed in order to generate a more detailed clinical picture of PDs. Aims: This study is primarily designed to investigate the point-prevalence of comorbid PTSD in clinical practice and, in addition, to explore to what extent the point-prevalence of comorbid PTSD differs between BPD and non-BPD PD patients and gender. Secondly, this study also investigates whether the amount of comorbid disorders is predicted by BPD (versus non-BPD PDs), PTSD and/or gender. Methods: For this retrospective study, data of 183 PD patients was used. During the intake process, the PD diagnosis and comorbid psychiatric disorders were examined using The Structured...Show moreBackground: A large number of studies have been conducted on the topic of comorbid posttraumatic stress disorder (PTSD) in borderline personality disorder (BPD), however, there is hardly any research that examines the comorbidity rate of PTSD in non-BPD personality disorders (PDs). Knowledge about all clusters of PDs in terms of comorbid PTSD is needed in order to generate a more detailed clinical picture of PDs. Aims: This study is primarily designed to investigate the point-prevalence of comorbid PTSD in clinical practice and, in addition, to explore to what extent the point-prevalence of comorbid PTSD differs between BPD and non-BPD PD patients and gender. Secondly, this study also investigates whether the amount of comorbid disorders is predicted by BPD (versus non-BPD PDs), PTSD and/or gender. Methods: For this retrospective study, data of 183 PD patients was used. During the intake process, the PD diagnosis and comorbid psychiatric disorders were examined using The Structured Clinical Interview for DSM-V and The Mini International Neuropsychiatric Interview Plus. Results: The point-prevalence rates of comorbid PTSD in this non-BPD PD sample is 12.7% and in this BPD sample is 23.1%. Additionally, there was no difference in likelihood of comorbid PTSD in BPD and non-BPD PD patients and between gender. Furthermore, BPD (versus non-BPD PDs), PTSD and gender did not predict the amount of comorbid disorders. Conclusions and implications: The results indicate that in clinical practice, comorbid PTSD and other comorbid disorders might not be recognized so often and thus might be underdiagnosed in PD patients. Hence, there must be more sensitivity in clinical practice for the recognition of comorbid PTSD and other comorbid disorders in PD patients.Show less

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The prevalence of comorbid posttraumatic stress disorder in personality disorders