title: Re-experiencing phenomena following a disaster: The long-term predictive role of intrusion symptoms in the development of post-trauma depression and anxiety.
abstract: BACKGROUND
  Contention in the literature regarding the diagnostic utility of intrusion symptoms highlights that they have high sensitivity but low specificity in predicting PTSD. They are highly prevalent following a range of traumatic events, and across a range of disorders. The prevalence of intrusion symptoms in the absence of PTSD suggests their relevance to the development of other psychopathology. Therefore, the predictive role of intrusion symptoms for other post-trauma psychopathology was examined using data from an epidemiological, longitudinal sample of adults recruited in childhood.
  
  
  METHODS
  From 5 phases of data collection for this sample, these analyses focused on the 20 year and 28 year follow-ups (n=583). Lifetime exposure to trauma was assessed using a modified set of 10 Criterion-A events from the Composite International Diagnostic Interview (CIDI), with PTSD assessed in reference to a self-nominated worst lifetime event, and other DSM-IV disorder also assessed using the CIDI.
  
  
  RESULTS
  Results showed that the presence of intrusion symptoms without PTSD at the 20 year follow-up was predictive of increased risk at 28 years for depressive but not anxiety disorders.
  
  
  CONCLUSIONS
  There was limited psychopathology in the sample, reducing the power to examine many individual disorders. Furthermore, trauma history and psychiatric symptoms were retrospectively reported, introducing the possibility of recall bias.
  
  
  CONCLUSIONS
  Together the findings suggest that intrusion symptoms may play an aetiological role in the development and/or maintenance of disorders other than PTSD.
authors.affiliation: Centre for Traumatic Stress Studies, University of Adelaide, Level 2/122 Frome Street, Adelaide, South Australia 5000, Australia. Electronic address: ellie.lawrence-wood@adelaide.edu.au.
authors.forename: Ellie
authors.initials: E
authors.lastname: Lawrence-Wood
authors.affiliation: Centre for Traumatic Stress Studies, University of Adelaide, Level 2/122 Frome Street, Adelaide, South Australia 5000, Australia.
authors.forename: Miranda
authors.initials: M
authors.lastname: Van Hooff
authors.affiliation: Centre for Traumatic Stress Studies, University of Adelaide, Level 2/122 Frome Street, Adelaide, South Australia 5000, Australia.
authors.forename: Jenelle
authors.initials: J
authors.lastname: Baur
authors.affiliation: Centre for Traumatic Stress Studies, University of Adelaide, Level 2/122 Frome Street, Adelaide, South Australia 5000, Australia.
authors.forename: Alexander C
authors.initials: AC
authors.lastname: McFarlane
mesh_terms: D000328:Adult; D001007:Anxiety / Q000453:epidemiology / Q000209:etiology* / Q000523:psychology*; D001315:Australia / Q000453:epidemiology; D003863:Depression; D003866:Depressive Disorder / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology* / Q000523:psychology*; D039721:Diagnostic and Statistical Manual of Mental Disorders; D004190:Disasters; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D011939:Mental Recall; D008875:Middle Aged; D015995:Prevalence; D062706:Prodromal Symptoms; D013313:Stress Disorders, Post-Traumatic / Q000175:diagnosis / Q000209:etiology* / Q000523:psychology*
keywords: Anxiety; Depression; Intrusions; Longitudinal; Posttraumatic stress disorder; Trauma