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Table 3 Group comparisons (HC, DD, PTSD) – inferential statistics of symptom severity, adversity/trauma measures and alexithymia scores

From: Somatoform dissociation and posttraumatic stress syndrome – two sides of the same medal? A comparison of symptom profiles, trauma history and altered affect regulation between patients with functional neurological symptoms and patients with PTSD

 

Comparison across groups

DD patients vs. HC

n = 100

PTSD patients vs. HC

n = 79

DD patients vs. PTSD patients

n = 99

Symptom severity

 SDQ-20

H(2) = 70.62

p < .001

U = 172.5, z = −7.17

p < .001

r = −0.72

U = 62, z = −7.07

p < .001

r = −0.80

U = 727, z = −2.98

p = .021

r = −0.30

 DES

H(2) = 68.77

p < .001

U = 585, z = −4.33

p < .001

r = −0.43

U = 24.5, z = −7.41

p < .001

r = −0.83

U = 348, z = −5.89

p < .001

r = −0.59

 PDS_Sym

H(2) = 82.23

p < .001

U = 402.5, z = −5.80

p < .001

r = −0.58

U = 0, z = −7.8

p < .001

r = −0.88

U = 322, z = −6.08

p < .001

r = −0.61

Adversity/trauma measures

 KERF_Sum

H(2) = 57.55

p < .001

U = 610, p = −3.70

p < .001

r = −0.37

U = 49, z = −7.05

p < .001

r = −0.79

U = 364.5, z = −5.20

p < .001

r = −0.52

 KERF_Phy

H(2) = 49.07

p < .001

U = 647.5, z = −3.43

p = .001

r = −0.34

U = 113.5, p = −6.55

p < .001

r = −0.73

U = 460, z = −4.70

p < .001

r = −0.47

 KERF_Emo

H(2) = 60.12

p < .001

U = 606, z = −3.72

p < .001

r = −0.37

U = 47.5, z = −7.19

p < .001

r = −0.80

U = 377.5, z = −5.33

p < .001

r = −0.53

 KERF_Sex

H(2) = 52.83

p < .001

U = 943.5, z = −2.22

n.s.

U = 226, z = −6.29

p < .001

r = −0.70

U = 472.5, z = −5.22

p < .001

r = −0.52

 PDS_Event

H(2) = 49.32

p < .001

U = 536, z = −4.73

p < .001

r = −0.47

U = 108.5, z = −6.66

p < .001

r = −0.74

U = 708.5, z = −3.36

p = .007

r = −0.34

Alexithymia

 TAS-26

H(2) = 70.34

p < .001

U = 387, z = −5.72

p < .001

r = −0.57

U = 67.5, z = −6.99

p < .001

r = −0.78

U = 408, z = −5.46

p < .001

r = −0.54

  1. Note. HC healthy comparison participants, DD patients diagnosed with dissociative disorder, PTSD posttraumatic stress disorder, SDQ-20 severity of somatoform dissociative symptoms, verified by the Somatoform Dissociation Questionnaire, DES severity of psychoform dissociative symptoms, using the Dissociative Experience Scale, PDS_Sym load of posttraumatic symptoms, KERF_Sum overall exposure to childhood adversities, KERF_Phy physical maltreatment during childhood, KERF_Emo emotional neglect and maltreatment during childhood, KERF_Sex sexual violence during childhood, PDS_Event Sum of lifetime traumatic experience assessed with the Posttraumatic Diagnostic Scale, TAS-26 Alexithymia, assessed with the Toronto Alexithymia Scale. Effect sizes were calculated using the estimate “r” described by Rosenthal, 1991 [46]