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Table 2 Functional neurological symptoms and experience scores per group and inferential statistics on group comparisons

From: “That pulled the rug out from under my feet!” – adverse experiences and altered emotion processing in patients with functional neurological symptoms compared to healthy comparison subjects

 

FNS patients (n = 45)

Healthy comparison subjects (n = 45)

FNS patients vs. HC

F44.4/F44.6 vs. F44.7

 

M ± SD

median (range)

M ± SD

median (range)

  

SDQ-20

33.3±9.5

31 (27–38)

21.4±1.7

21 (20–22)

t(88) = 8.63***, d = 0.68

U = 117.5, z = -2.59*, r = -0.36

ETI

      

Group

    

F(1, 88) = 12.59***, η2 = 0.13

 

Domainc

    

F(1.1,97) = 31.4***, η2 = 0.26

 

Group x domain

    

F(1.1,97) = 13.19***, η2 = 0.13

 

Group simple effects by ETI domain

      

General

2.5±3.7

1.17 (0.43–2.93)

1±1.6

0.3 (0.09–1.48)

U = 625.5, z = -3.13**, r = -0.33

n. s.

Physical

4.1±6.4

1.44 (0.11–4.15)

2.6±3.2

1.11 (0.11–3.17)

n. s.

n. s.

Emotional

20.8±27.5

10 (1.25–34.19)

4.9±10.6

0.75 (0–5.19)

U = 539, z = -3.89***, r = -0.41

n. s.

Sexual abuse

0.6±2

0 (0–0)

0.1±0.2

0 (0–0.03)

n. s.

U = 150, z = -2.48*, r = -0.34

LEQ

      

Group

    

F(1, 88) = 10.91**, η2 = 0.11

 

Group x domain

    

F(1, 88) = 58.12***, η2 = 0.4

 

Group simple effects by LEQ domain

      

sum-

21.3±12.5

23 (10.5–31.5)

6±5.1

4 (2–8)

F(1,88) = 57.64***, η2 = 0.4

U = 138.5, z = -2.08*, r = -0.37

sum+

10.9±9.2

9 (2.5–16)

14.9±11.8

10 (6–24)

n. s.

n. s.

ERQ S

4.1±1.6

4.25 (3–5.25)

3.1±1.3

2.75 (2–4.13)

t(88) = 3.18**, d = 0.32

n. s.

TAS-26

2.6±0.6

2.61 (2.28–2.89)

2±0.4

1.94 (1.67–2.22)

t(88) = 6.61***, d = 0.58

n. s.

  1. Note. FNS = functional neurological symptoms; HC = healthy comparison subjects; F44.4/F44.6 = dissociative movement or sensitivity disorder; F44.7 = multiple dissociative movement and sensitivity disorder; SDQ-20 = FNS symptom severity verified using the Somatoform Dissociation Questionnaire; ETI = Early Trauma Interview including the domains: general traumata, emotional neglect/abuse, physical neglect/abuse and sexual abuse; LEQ = Life Events Questionnaire with: LEQ sum- = recent negative life events; LEQ sum+ = recent positive life events; ERQs = suppressive emotion regulation style assessed using the Emotion Regulation Questionnaire; TAS-26 = Toronto Alexithymia Scale. ***: p < 0.001, **: p < 0.01, * p < 0.05, n. s.: not significant, p > 0.05