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Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Trauma Studies

Background:

  • Posttraumatic stress disorder (PTSD) and major depressive disorder (MDD) frequently follow traumatic events.
  • Identifying individuals at high risk for persistent symptoms is crucial for effective interventions.

Purpose of the Study:

  • To conduct an individual participant data meta-analysis (IPD-MA) to identify risk factors for acute and persistent PTSD and MDD.
  • To examine the association between acute symptoms and the persistence of PTSD and MDD.

Main Methods:

  • Pooled data from five prospective studies (N=2571) involving emergency room and critical care unit patients.
  • Harmonized measures of PTSD and MDD were derived for acute (0-60 days) and persistent (122-456 days) periods.
  • Multinomial logistic regression and logistic models were employed to analyze risk factors and symptom persistence.

Main Results:

  • Female sex was associated with increased risk for both acute and persistent MDD and PTSD.
  • Experiencing an accident as the index trauma, compared to assault or other events, was linked to a reduced risk.
  • Acute MDD symptom severity predicted persistent PTSD, and reexperiencing symptoms predicted persistent PTSD, suggesting a role for depressive rumination.

Conclusions:

  • Early symptoms of MDD and reexperiencing are associated with the persistence of psychopathology.
  • Depressive rumination may play a significant role in the maintenance of both MDD and PTSD.
  • Findings highlight the importance of early symptom assessment for predicting long-term outcomes in trauma survivors.