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Table 1 Demographics, comorbidities and type of trauma exposure in the cohorta (significant P values in bold).

From: An fMRI study of unconditioned responses in post-traumatic stress disorder

  PTSDb TENCc P
Demographics    
   Gender, M/F 9/10 (n = 19) 11/13 (n = 24) 0.5d
   Age, ± SD 36 ± 12 (n = 19) 30 ± 12 (n = 24) 0.16
   Years of education 15 ± 2 (n = 19) 17 ± 6 (n = 19) 0.1
Personality e    
   NEO neuroticism 27 ± 8 (n = 16) 17 ± 9 (n = 22) 0.001
   NEO extraversion 22 ± 8 (n = 16) 30 ± 6 (n = 22) <0.001
   NEO openness 28 ± 6 (n = 16) 32 ± 5 (n = 22) 0.04
   NEO agreeableness 29 ± 6 (n = 16) 31 ± 6 (n = 22) 0.3
   NEO conscientiousness 33 ± 7 (n = 16) 34 ± 7 (n = 22) 0.66
Clinical measures    
   CAPSf score 67 ± 24 (n = 19) 8 ± 9 (n = 24) < 0.001
   BDIgscore 21 ± 12 (n = 19) 2 ± 3 (n = 24) < 0.001
   BAIh score 19 ± 13 (n = 17) 5 ± 8 (n = 22) < 0.001
   Spielberger Trait anxiety 54 ± 12 (n = 18) 35 ± 9 (n = 21) < 0.001
   Spielberger State anxiety 44 ± 12 (n = 18) 34 ± 12 (n = 22) < 0.001
   Age at trauma, years 24 ± 15 (n = 19) 19 ± 12 (n = 19) 0.23
   Time since trauma, years 11 ± 15 (n = 19) 12 ± 12 (n = 19) 0.95
   Subjects with childhoodi trauma n 9 5 0.10*d
Type of trauma exposure, n    
   Motor vehicle accidents 3 4 1.0d
   Sexual assaults 8 3 0.04 d
   Physical assaults 5 7 1.0d
   Childhood abuse 6 3 0.15d
   Combat 3 0 0.07d
   Witness to trauma 3 7 0.47d
Current comorbidities, n    
   Major depression 5 0 0.01 d
   Panic disorder 3 0 0.07d
   Alcohol abuse 1 0 0.44d
   Other substance abuse 2 0 0.19d
   Eating disorders 2 0 0.19d
  1. aNot all ratings were available for all participants; numbers are given in brackets. Participants might also have had more than one type of traumatic event or comorbid disorder.
  2. bPost-traumatic stress disorder.
  3. cTrauma-exposed normal control.
  4. dFisher's exact probability test. All other data were analyzed with Student's t-test, two-tailed.
  5. eAs measured by the Neuroticism-Extroversion-Openness (NEO) Inventory
  6. fCAPS, Clinician-Administered PTSD Scale.
  7. gBDI, Beck Depression Inventory.
  8. hBAI Beck Anxiety Index.
  9. iBefore the age of 16 years.