EJNMMI Research

Table 1 Demographic and clinical characteristics of the study participants

From: Coexistence of cerebral hypometabolism and neuroinflammation in the thalamo-limbic-brainstem region in young women with functional somatic syndrome

Characteristics	FSS group (n = 12)	Control group
Characteristics	FSS group (n = 12)	[¹⁸F]FDG PET (n = 12)	[¹¹C]DPA713 PET (n = 16)
Age (years)	19.3 ± 1.5	32.8 ± 9.5*	20.6 ± 1.6
Women/men	12/0	12/0	16/0
Disease duration (years)	4.3 ± 0.7	n.a.	n.a.
Clinical scores (score range)		n.a.	n.a.
Numerical rating scale (0 - 10)^a	4.0 ± 1.8	n.a.	n.a.
Chalder fatigue scale (1 - 33)^b	21.4 ± 7.5	n.a.	n.a.
Stanford sleepiness scale (1 - 7)^c	3.4 ± 1.4	n.a.	n.a.
WAIS-III^d
Full-scale IQ	80.6 ± 11.6	n.a.	n.a.
Verbal IQ	81.8 ± 8.6	n.a.	n.a.
Performance IQ	83.7 ± 16.8	n.a.	n.a.
Verbal comprehension	86.7 ± 9.3	n.a.	n.a.
Perceptual organization	83.6 ± 16.4	n.a.	n.a.
Working memory	79.6 ± 14.2	n.a.	n.a.
Processing speed	80.4 ± 18.4	n.a.	n.a.
WMS-R^d
Full memory	86.1 ± 16.6	n.a.	n.a.
Verbal memory	85.7 ± 19.2	n.a.	n.a.
Visual memory	87.9 ± 16.2	n.a.	n.a.
Attention memory	77.3 ± 15.2	n.a.	n.a.
Delayed memory	74.7 ± 20.6	n.a.	n.a.

Data are the mean ± standard deviation (SD) or the number
IQ intelligence quotient, n.a. not available, WAIS-III Wechsler Adult Intelligence Scale-Third Edition, WMS-R Wechsler Memory Scale-Revised
*p < 0.05
^aPain scale ranges from 0 (no pain) to 10 (worst pain)
^bFatigue scale with higher scores indicating a greater degree of fatigue
^cSleep scale ranges from 1 (wide awake) to 7 (no longer fighting sleep)
^dThe average IQ and memory score is defined as 100 and the SD as 15 (i.e., approximately two-thirds of all scores between 85 and 115)

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