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A taxometric investigation of dissociation in Vietnam veterans.
J Trauma Stress. 2005 Aug; 18(4):359-69.JT

Abstract

There is long-standing debate about whether elevated dissociative symptoms are common in posttraumatic stress disorder (PTSD) or whether there is a distinct subtype of cases with elevated dissociation. The current investigation examined the latent structure of dissociative symptoms in a sample of 316 male, trauma-exposed Vietnam veterans, 76 of whom were diagnosed with current PTSD. Three taxometric procedures (MAMBAC, MAXEIG, and MAXCOV) were performed on three indicator sets drawn from the Dissociative Experiences Scale. Taxometric analyses consistently revealed a taxon (subtype) of highly dissociative individuals. The taxon members had significantly more severe posttraumatic symptoms and were more often diagnosed with current PTSD than were non-taxon members. Among participants with a current PTSD diagnoses, only 32% belonged to the dissociative taxon, suggesting that there is a subtype of severe PTSD with elevated dissociation.

Authors+Show Affiliations

Pacific Graduate School of Psychology, Palo Alto, California 94303, USA. lwaelde@pgsp.eduNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

16281233

Citation

Waelde, Lynn C., et al. "A Taxometric Investigation of Dissociation in Vietnam Veterans." Journal of Traumatic Stress, vol. 18, no. 4, 2005, pp. 359-69.
Waelde LC, Silvern L, Fairbank JA. A taxometric investigation of dissociation in Vietnam veterans. J Trauma Stress. 2005;18(4):359-69.
Waelde, L. C., Silvern, L., & Fairbank, J. A. (2005). A taxometric investigation of dissociation in Vietnam veterans. Journal of Traumatic Stress, 18(4), 359-69.
Waelde LC, Silvern L, Fairbank JA. A Taxometric Investigation of Dissociation in Vietnam Veterans. J Trauma Stress. 2005;18(4):359-69. PubMed PMID: 16281233.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A taxometric investigation of dissociation in Vietnam veterans. AU - Waelde,Lynn C, AU - Silvern,Louise, AU - Fairbank,John A, PY - 2005/11/11/pubmed PY - 2006/10/7/medline PY - 2005/11/11/entrez SP - 359 EP - 69 JF - Journal of traumatic stress JO - J Trauma Stress VL - 18 IS - 4 N2 - There is long-standing debate about whether elevated dissociative symptoms are common in posttraumatic stress disorder (PTSD) or whether there is a distinct subtype of cases with elevated dissociation. The current investigation examined the latent structure of dissociative symptoms in a sample of 316 male, trauma-exposed Vietnam veterans, 76 of whom were diagnosed with current PTSD. Three taxometric procedures (MAMBAC, MAXEIG, and MAXCOV) were performed on three indicator sets drawn from the Dissociative Experiences Scale. Taxometric analyses consistently revealed a taxon (subtype) of highly dissociative individuals. The taxon members had significantly more severe posttraumatic symptoms and were more often diagnosed with current PTSD than were non-taxon members. Among participants with a current PTSD diagnoses, only 32% belonged to the dissociative taxon, suggesting that there is a subtype of severe PTSD with elevated dissociation. SN - 0894-9867 UR - https://www.unboundmedicine.com/medline/citation/16281233/A_taxometric_investigation_of_dissociation_in_Vietnam_veterans_ DB - PRIME DP - Unbound Medicine ER -