Elucidating dimensions of posttraumatic stress symptoms and their functional correlates in disaster-exposed adolescents

Jennifer A. Sumner, Robert H. Pietrzak, Carla Kmett Danielson, Zachary Adams, Kenneth J. Ruggiero

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The aim of this study was to elucidate the dimensional structure of posttraumatic stress disorder (PTSD) and potential moderators and functional correlates of this structure in disaster-affected adolescents. A population-based sample of 2000 adolescents aged 12-17 years (M=14.5 years; 51% female) completed interviews on post-tornado PTSD symptoms, substance use, and parent-adolescent conflict between 4 and 13 months (M=8.8, SD=2.6) after tornado exposure. Confirmatory factor analyses revealed that all models fit well but a 5-factor dysphoric arousal model provided a statistically significantly better representation of adolescent PTSD symptoms compared to 4-factor dysphoria and emotional numbing models. There was evidence of measurement invariance of the dysphoric arousal model across gender and age, although girls and older adolescents aged 15-17 years had higher mean scores than boys and younger adolescents aged 12-14 years, respectively, on some PTSD dimensions. Differential magnitudes of association between PTSD symptom dimensions and functional correlates were observed, with emotional numbing symptoms most strongly positively associated with problematic substance use since the tornado, and dysphoric arousal symptoms most strongly positively associated with parent-adolescent conflict; both correlations were significantly larger than the corresponding correlations with anxious arousal. Taken together, these results suggest that the dimensional structure of tornado-related PTSD symptomatology in adolescents is optimally characterized by five separate clusters of re-experiencing, avoidance, numbing, dysphoric arousal, and anxious arousal symptoms, which showed unique associations with functional correlates. Findings emphasize that PTSD in disaster-exposed adolescents is not best conceptualized as a homogenous construct and highlight potential differential targets for post-disaster assessment and intervention.

Original languageEnglish (US)
Pages (from-to)85-92
Number of pages8
JournalJournal of Psychiatric Research
Volume59
DOIs
StatePublished - Dec 1 2014
Externally publishedYes

Fingerprint

Disasters
Post-Traumatic Stress Disorders
Tornadoes
Arousal
Disaster
Statistical Factor Analysis
Interviews

Keywords

  • Adolescents
  • Confirmatory factor analysis
  • Disasters
  • Dysphoric arousal model
  • Posttraumatic stress disorder

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Psychiatry and Mental health
  • Biological Psychiatry

Cite this

Elucidating dimensions of posttraumatic stress symptoms and their functional correlates in disaster-exposed adolescents. / Sumner, Jennifer A.; Pietrzak, Robert H.; Danielson, Carla Kmett; Adams, Zachary; Ruggiero, Kenneth J.

In: Journal of Psychiatric Research, Vol. 59, 01.12.2014, p. 85-92.

Research output: Contribution to journalArticle

Sumner, Jennifer A. ; Pietrzak, Robert H. ; Danielson, Carla Kmett ; Adams, Zachary ; Ruggiero, Kenneth J. / Elucidating dimensions of posttraumatic stress symptoms and their functional correlates in disaster-exposed adolescents. In: Journal of Psychiatric Research. 2014 ; Vol. 59. pp. 85-92.
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