The dissociative subtype of PTSD: a replication and extension.

Published

Journal Article

BACKGROUND: The nature of the relationship between dissociation and posttraumatic stress disorder (PTSD) has clinical and nosological importance. The aim of this study was to evaluate the evidence for a dissociative subtype of PTSD in two independent samples and to examine the pattern of personality disorder (PD) comorbidity associated with the dissociative subtype of PTSD. METHODS: Latent profile analyses were conducted on PTSD and dissociation items reflecting derealization and depersonalization in two samples of archived data: Study 1 included 360 male Vietnam War Veterans with combat-related PTSD; Study 2 included 284 female Veterans and active duty service personnel with PTSD and a high base rate of exposure to sexual trauma. RESULTS: The latent profile analysis yielded evidence for a three-class solution in both samples: the model was defined by moderate and high PTSD classes and a class marked by high PTSD severity coupled with high levels of dissociation. Approximately 15% of the male sample and 30% of the female sample were classified into the dissociative class. Women (but not men) in the dissociative group exhibited higher levels of comorbid avoidant and borderline PD diagnoses. CONCLUSIONS: Results provide support for a dissociative subtype of PTSD and also suggest that dissociation may play a role in the frequent co-occurrence of PTSD and borderline PD among women. These results are pertinent to the on-going revisions to the DSM and suggest that consideration should be given to incorporating a dissociative subtype into the revised PTSD criteria.

Full Text

Duke Authors

Cited Authors

  • Wolf, EJ; Lunney, CA; Miller, MW; Resick, PA; Friedman, MJ; Schnurr, PP

Published Date

  • August 2012

Published In

Volume / Issue

  • 29 / 8

Start / End Page

  • 679 - 688

PubMed ID

  • 22639402

Pubmed Central ID

  • 22639402

Electronic International Standard Serial Number (EISSN)

  • 1520-6394

Digital Object Identifier (DOI)

  • 10.1002/da.21946

Language

  • eng

Conference Location

  • United States