Sound-Induced Flash Illusions Support Cortex Hyperexcitability in Fibromyalgia

Table 1

Demographic and clinical features of the study population. FIQ, fibromyalgia impact questionnaire; HADS-A and HADS-D, Hospital Anxiety and Depression Scale. Variables are expressed as mean with standard deviation (SD) and numbers/count percentage.

	FM (n = 24)	FM with migraine (n = 17)	Healthy controls (n = 41)
Age (mean ± SD)	51.2 ± 10.6	47.8 ± 11.4	47.3 ± 6.9	0.23
Gender (female)	22 (92%)	16 (94%)	34 (83%)	0.4
FIQ (mean ± SD)	68.5 ± 10.4	71.1 ± 12.7		0.47
HADS-A (mean ± SD)	12.8 ± 4,1	12.8 ± 3,7		0.98
HADS-D (mean ± SD)	9.6 ± 3.9	11.7 ± 4.6		0.13
Medication	17.71%	13.76%		0.7
Antidepressant	3.13%	5.29%		0.2
Anticonvulsant	1.4%	1.6%		0.8
Analgesic	3.13%	1.6%		0.5
Vitamins	5.21%	2.12%		0.4
Combination therapy	5.21%	4.24%		0.8