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Differences between posttraumatic stress disorder patients with delayed and undelayed onsets.

C G Watson1, T Kucala, V Manifold

  • 1Research Service, Veterans Administration Medical Center, St. Cloud, Minnesota 56301.

The Journal of Nervous and Mental Disease
|September 1, 1988
PubMed
Summary
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This study found no significant differences between delayed and undelayed posttraumatic stress disorder (PTSD) onset groups. Findings do not support separate diagnostic categories for delayed PTSD or link onset delay to trauma magnitude, symptom severity, or repression.

Area of Science:

  • Psychology
  • Psychiatry
  • Trauma Studies

Background:

  • Posttraumatic stress disorder (PTSD) can manifest with delayed symptom onset in some individuals.
  • The clinical significance and etiological factors of delayed-onset PTSD remain areas of investigation.

Purpose of the Study:

  • To investigate potential differences between individuals with delayed-onset PTSD and those with undelayed onset.
  • To examine whether trauma magnitude, symptom severity, repression, or stress history explains delayed symptom manifestation.

Main Methods:

  • Comparison of PTSD symptom self-ratings between delayed and undelayed onset groups.
  • Analysis of Minnesota Multiphasic Personality Inventory (MMPI) scores, stress histories, and repression measures.

Main Results:

Related Experiment Videos

  • No statistically significant differences were found in the number or size of variations between the delayed and undelayed PTSD groups.
  • The findings did not support the establishment of distinct delayed- and undelayed-onset PTSD diagnostic categories.
  • Delayed onset was not attributable to trauma magnitude, symptom severity, repression, or limited stress history.

Conclusions:

  • Current evidence does not support differentiating PTSD based on symptom onset delay.
  • The hypotheses linking delayed onset to specific psychological or experiential factors were not substantiated by this study.