An evaluation of exclusionary medical/psychiatric conditions in the definition of chronic fatigue syndrome

Table 3 Numbers and types of exclusionary conditions

	Telephone interview (n= 5558*)		Clinic evaluation (n= 781*)
	n	(%)	n	(%)
Medical
Morbid obesity (BMI> = 40 kg/m²)	335	6.0	0	0
Pregnancy within the past year	282	5.1	0	0
HIV or AIDS	33	0.6	0	0
Organ transplantation	14	0.3	0	0
Sleep disorders	289	5.2	1	0.1
Neurological	^†105	1.9	4	0.5
Autoimmune/inflammatory	^‡88	1.6	33	4.2
Cardiovascular	77	1.4	12	1.5
Infection	^§46	0.8	1	0.1
Cancer	28	0.5	0	0
Diabetes mellitus Type 1	22	0.4	22	2.8
Blood disorders	23	0.4	32	4.1
Lung disease	19	0.3	6	0.8
Liver	16	0.3	1	0.1
Renal	11	0.2	3	0.4
Surgery	10	0.2	0	0
Thyroid/pituitary	5	0.1	42	5.4
Other	72	1.3	9	1.2
Psychiatric
Bipolar	72	1.3	36	4.6
Substance abuse	49	0.9	63	8.1
Schizophrenia	30	0.5	16	2.0
MDD/M	NE		41	5.2
Anorexia/bulimia	7	0.1	11	1.4
Other	7	0.1	0	0

Each condition identified in study participant was classified and listed separately; an individual may contribute more than one condition.
*Excludes subjects with missing or incomplete data
†Including strokes (45)
^‡Including ulcerative colitis and Crohn's (34)
^§ Including hepatitis C (37)
NE = not evaluated; BMI = body mass index; MDD/M = major depressive disorder with melancholic features

ISSN: 1741-7015