Citation

Armour C, Shevlin M, Elklit A, Mroczek D. Traumatology 2012; 18(1): 20-28.

Affiliation

University of Ulster, Magee Campus, Londonderry, Northern Ireland, UK.

Copyright

(Copyright © 2012, Green Cross Academy of Traumatology, Publisher APA Journals)

DOI

10.1177/1534765610395627

PMID

22661909

PMCID

PMC3365569

Abstract

The research literature has suggested that longitudinal changes in posttraumatic stress disorder (PTSD) could be adequately described in terms of one universal trajectory, with individual differences in baseline levels (intercept) and rate of change (slope) being negligible. However, not everyone who has experienced a trauma is diagnosed with PTSD, and symptom severity levels differ between individuals exposed to similar traumas. The current study employed the latent growth mixture modeling technique to test for multiple trajectories using data from a sample of Danish rape victims (N = 255). In addition, the analysis aimed to determine whether a number of explanatory variables could differentiate between the trajectories (age, acute stress disorder [ASD], and perceived social support). Results concluded the existence of two PTSD trajectories. ASD was found to be the only significant predictor of one trajectory characterized by high initial levels of PTSD symptomatology. The present findings confirmed the existence of multiple trajectories with regard to PTSD symptomatology in a way that may be useful to clinicians working with this population.

Language: en