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Table 1 Participant characteristics and group differences for clinical parameters

From: Serotonergic gene-to-gene interaction is associated with mood and GABA concentrations but not with pain-related cerebral processing in fibromyalgia subjects and healthy controls

 

FMS

(n = 84)

HC

(n = 43)

Group difference

Age

47.2 (7.8)

48.1 (7.6)

t(87) = − 0.63

p = 0.53

VASnow

53.3 (22.0)

2.2 (3.2)

t(90) = 20.80

p < 0.001

PCS

18.3 (10.8)

4.7 (7.0)

W = 3170

p < 0.001

HAD-A

7.9 (4.3)

3.1 (2.9)

t(116) = 7.47

p < 0.001

HAD-D

7.2 (4.0)

1.1 (1.5)

t(116) = 12.29

p < 0.001

BDI

16 (7.7)

0.5 (1.4)

W = 3544

p < 0.001

Tenderpoints

16.4 (1.8)

Pain duration (months)

185.6 (104.2)

  1. Reported are mean (standard deviation) and Wilcoxon Rank Sum test or Welch two-sample t-test
  2. FMS  fibromyalgia subjects, HC  healthy controls, VASnow  current pain on visual analogue scale, PCS Pain Catastrophizing Scale, HAD-A  Hospital Anxiety and Depression Scale (anxiety subscale), HAD-D Hospital Anxiety and Depression Scale (depression subscale), BDI Beck’s Depression Inventory