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Table 2 The main comorbid conditions and the duration of the main diagnosis

From: A case series of 223 patients with depersonalization-derealization syndrome

  DDS
n = 223
Only Depressed Group
n = 1129
Test
Depressive disorder (F32.-, F33.-, F34.-) 84.8 % (189) n.a.  
Anxiety disorder (F40.-, F41.-) 42.6 % (95) 30.5 % (344) χ 2 = 12.5, p < 0.0001
Somatoforme disorder (F45.-) 2.7 % (6) 21.5 % (243) χ 2 = 44.0, p < 0.0001
Obsessive compulsive disorder (F42.-) 3.1 % (7) 2.9 % (33) χ 2 = 0.03, p = 0.862
Post traumatic stress disorder (PTSD, F43.1) 0.9 % (2) 6.4 % (72) χ 2 = 10.8, p = 0.001
Dissociative disorder (F44.-) 1.8 % (4) 3.1 % (35) χ 2 = 1.1, p = 0.287
Eating disorder (F50.-) 0.4 %(1) 6.8 % (77)  
Disorders due to psychoactive substance use (F1x.-) 4.9 % (11) 7.4 % (83) χ 2 = 1.7, p = 0.194
Age of onset of main diagnosis 22.9 ± 9.7 35.1 ± 13.4 T = 14.72, p < 0.0001
Years since onset of main diagnosis 7.6 ± 7.0 4.6 ± 6.7 T = 5.61, p < 0.0001
  1. Comorbid conditions refer to the most prevalent cumulative diagnoses in the sample (excluding personality disorders); n.a.; not applicable; DDS, patients with depersonalization-derealization syndrome