Journal
JOURNAL OF ANXIETY DISORDERS
Volume 31, Issue -, Pages 90-97Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.janxdis.2015.02.006
Keywords
Posttraumatic stress disorder; DSM-5; Confirmatory factor analysis; Earthquake; China
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Funding
- National Key Technology Research and Development Program of China [2013BA108B02]
- Key Research Program of the Chinese Academy of Sciences [KJZD-EW-L04]
- National Natural Science Foundation of China [31271099, 31471004]
- Outstanding Young Investigator Foundation of the Institute of Psychology, Chinese Academy of Sciences
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences
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By analyzing data yielded from a sample of Chinese adolescents surviving a high-intensity earthquake, this study investigated the underlying dimensionality of DSM-5 PTSD symptoms. The sample included 743 traumatized middle school students (396 females and 332 males) aged 11-17 years (mean = 13.6, SD = 1.0). Results of confirmatory factor analysis showed that an intercorrelated seven-factor model comprised of intrusion, avoidance, negative affect, anhedonia, externalizing behaviors, anxious arousal, and dysphoric arousal factors provided a significant better representation of DSM-5 PTSD symptoms than other alternative models. Further analyses indicated that external measures of major depression disorder and panic disorder symptoms displayed unique associations with four PTSD factors. The findings provide further support for the newly proposed seven-factor model of DSM-5 PTSD symptoms, add to very limited empirical knowledge on the latent structure of DSM-5 PTSD symptoms among adolescents, and carry implications for further refinement of the current classifications of PTSD symptoms and further clinical practice and research on posttraumatic stress symptomatology. (C) 2015 Elsevier Ltd. All rights reserved.
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