Table 2.

Descriptives of the healthy volunteers.

Healthy Volunteers	Total Group		Women		Men		Women vs. Men	CSS+ vs. Healthy Volunteers			CSS− vs. Healthy Volunteers
								Total group	Women	Men	Total group	Women	Men
	N	Mean ± SD	N	Mean ± SD	N	Mean ± SD	p	p	p	p	p	p	p
Age (years)	250	43.2 ± 16.1	157	41.6 ± 14.2	93	45.9 ± 18.6	0.056	<0.001 *	<0.001 *	<0.001 *	<0.001 *	<0.001 *	<0.001 *
Height (cm)	250	175.8 ± 9.2	157	170.9 ± 6.2	93	184.0 ± 7.2	<0.001 *	<0.001 *	0.004 *	0.093	0.412	0.001 *	0.025 *
Weight (kg)	250	75.2 ± 14.9	157	69.9 ± 12.7	93	84.2 ± 14.1	<0.001 *	<0.001 *	<0.001 *	<0.001 *	<0.001 *	<0.001 *	0.001 *
BMI (kg/cm²)	250	24.2 ± 3.8	157	23.9 ± 4.0	93	24.8 ± 3.3	0.067	<0.001 *	<0.001 *	<0.001 *	<0.001 *	<0.001 *	<0.001 *
CSI (0–100)	250	16.4 ± 8.6	157	17.3 ± 8.7	93	15.1 ± 8.3	0.049 *	<0.001*	<0.001 *	<0.001 *	<0.001 *	<0.001 *	<0.001 *

Abbreviations: CSS+: patients with chronic pain with central sensitivity syndrome(s); CSS−: patients with chronic pain without central sensitivity syndrome(s); N: number; BMI: body mass index; CSI: central sensitization inventory; SD: standard deviation. Statistics: Comparison made with an unpaired student t-test between women vs. men and CSS+ vs. CSS−. For the location of pain Χ²-test was used to calculate the differences between groups. * p < 0.05.