Table 1.

Inclusion Criteria. This table shows the source of the adapted inclusion criteria for the comorbidities mentioned in ODYSA questionnaire.

Type of disease	Disease	Source
Bowel and bladder	Irritable bowel syndrome	Rome II criteria, 2nd. Ed., 2000 [11]
	Interstitial Cystitis	O'Leary-Sant Questions Urology, 1997, [12] Unmodified
	Cyclic vomiting syndrome	JPGN, 2008 [13]
	Functional Dyspepsia	Rome II criteria, 2nd. Ed., 2000 [11]
	Functional Abdominal Pain	Rome II criteria, 2nd. Ed., 2000 [11]
Cardiology	Orthostatic intolerance	Developed and partially validated by investigators, based on diagnostic criteria in Clinical Autonomic Disorders PA Low, 1997 [14]
	Reflex Syncope	Based on Question sets validated by Sheldon JACC, 2002; Eur Heart J, 2006 [15, 16]
Pain and fatigue	Migraine Headache	Face-valid questions developed by the investigators based on IHS Classification, Cephalalgia, 2004 [6]
	Fibromyalgia	Pain Score Localizer from JM Olson, 2001 McGill Short Form Questionnaire [17]
	Complex Regional Pain Syndrome/Reflex Sympathetic Dystrophy	Face-valid questions developed by the investigators based on IASP Criteria and Chelimsky, 1995 [18, 19]
	Chronic Fatigue Syndrome	Face-valid questions developed by the investigators based on CDC Criteria [20]
	Raynaud's syndrome	Face-valid questions developed by the investigators