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Table 4 Group comparisons (HC, DD+, 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+ vs. PTSD patients

n = 59

DD vs. PTSD patients

n = 79

DD vs. HC

n = 80

DD+ vs. DD

n = 60

Symptom severity

 SDQ

H(3) = 77.61

p < .001

U = 332.5, z = −3.20

n.s.

U = 394.5, z = −3.78

p < .001

r = −0.41

U = 172.5, z = −6.08

p < .001

r = −0.68

U = 151.5, z = −3.51

p < .001

r = −0.45

 DES

H(3) = 78.20

p < .001

U = 197.5, z = −3.08

p = .014

r = −0.40

U = 150.5, z = −6.17

p < .001

r = −0.61

U = 528.5, z = −2.61

n.s.

U = 168.5, z = −3.63

p < .001

r = −0.47

 PDS_Sym

H(3) = 102.77

p < .001

U = 267.5, z = −1.96

n.s.

U = 54.5, z = −7.13

p < .001

r = −0.8

U = 402.5, z = −4.09

p < .001

r = −0.46

U = 37, z = −5.72

p < .001

r = −0.74

Adversity/trauma measures

 KERF_Sum

H(3) = 61.63

p < .001

U = 169, z = −2.71

p = .049

r = −0.35

U = 195.5, z = −5.38

p < .001

r = −0.61

U = 510, z = −2.5

n.s.

U = 203, z = −2.19

n.s.

 KERF_Phy

H(3) = 49.98

p < .001

U = 183, z = −2.65

n.s.

U = 277, z = −4.73

p < .001

r = −0.53

U = 481.5, z = −2.8

p = 0.03

r = −0.31

U = 271, z = −0.95

n.s.

 KERF_Emo

H(3) = 66.10

p < .001

U = 194.5, z = −2.44

n.s.

U = 183, z = −5.69

p < .001

r = −0.63

U = 512.5, z = −2.47

n.s.

U = 169.5, z = −2.80

p = .035

r = −0.36

 Mace_Sex

H(3) = 53.50

p < .001

U = 173, z = −2.94

p = .021

r = −0.38

U = 299.5, z = 4.99

p < .001

r = −0.56

U = 676.5, z = −1.81

n.s.

U = 287.5, z = −1.00

n.s.

 PDS_Event

H(3) = 52.07

p < .001

U = 301.5, z = −1.45

n.s.

U = 407, z = −3.72

p < .001

r = −0.42

U = 424.5, z = 3.67

p < .001

r = −0.41

U = 291.5, z = −1.73

n.s.

Alexithymia

 TAS-26

H(3) = 74.97

p < .001

U = 211, z = −2.87

p = .028

r = −0.37

U = 197, z = −5.72

p < .001

r = −0.64

U = 325.0, z = 4.58

p < .001

r = −0.51

U = 226, z = −2.73

p = 0.042

r = −0.35

  1. Note. HC healthy comparison participants, DD patients diagnosed with dissociative disorder without co-occuring PTSD, DD + patients diagnosed with dissociative disorder with co-occuring PTSD, 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]