Table 1

Summary of demographic data, positron emission tomography findings, and psychometric findings in 26 patients with chronic fatigue syndrome in individual comparisons with normal controls

	Demographics		Psychometric test scores					PET findings
Patient No	Age (years)	Sex	Anxiety	Depression	HRQOL, physical	HRQOL, mental	Fatigue	None	Mesial cortical	Orbito- frontal
*Missing data.
F, female; HRQOL, health related quality of life (short form 36); M, male; n, no; PET, positron emission tomography; y, yes.
1	49	M	13	11	−2.4	−2.4	72	y
2	34	M	10	7	−3.0	−2.6	46	n	y	n
3	41	F	11	10	−2.3	−1.5	66	n	y	n
4	26	M	8	7	−2.2	−1.4	34	n	y	n
5	35	F	6	8	−2.2	−1.5	44	y
6	34	M	13	8	−3.6	−3.6	85	n	n	y
7	40	F	2	4	−3.5	−1.2	*	y
8	43	M	13	14	−2.6	−3.2	73	y
9	43	M	9	17	−4.6	−3.6	88	y
10	54	F	4	2	−2.5	−0.7	48	y
11	54	M	7	12	−2.1	−0.5	83	n	y	y
12	52	F	2	7	−2.1	−1.8	51	y
13	39	M	17	8	−1.9	−3.3	42	y
14	57	F	3	10	−2.3	−1.5	87	y
15	57	F	7	4	−1.2	−1.6	31	y
16	61	F	7	10	−1.7	−1.2	63	n	y	y
17	35	F	3	11	−1.6	−1.0	76	y
18	42	M	7	8	−2.2	−2.1	51	n	y	n
19	27	M	10	3	−0.7	−0.7	*	n	cuneus	n
20	48	F	4	4	−1.3	−0.1	58	n	cuneus	n
21	50	F	14	7	−2.9	−2.9	69	n	n	y
22	41	M	10	12	−2.0	−2.7	72	n	y	y
23	47	M	6	12	−3.7	−2.5	78	y
24	29	M	6	7	−4.4	−1.2	80	n	y	n
25	47	F	2	8	−3.1	−1.4	67	n	y	n
26	41	F	3	1	−1.7	0.0	19	n	y	n

Mean	43		7.6	8.2	−2.5	−1.8	61.8
SD	9.3		4.2	3.8	0.9	1.0	19.4