Table 1

Demographic data of patients and controls

	(n)	%	Mean (SD)	Min	Max
Number	125	100
Ethnicity
White	120	96
Arabic	5	4
Crohn’s disease	49	39
Male	12
Female	37
Age (years)			40 (11)	19	63
Disease duration (years)			14 (11)	2	45
Age at diagnosis (years)			27 (10)	10	50
Ulcerative colitis	57	46
Male	26
Female	31
Age (years)			40 (16)	21	74
Disease duration (years)			10 (6)	2	28
Age at diagnosis (years)			33 (14)	14	55
Healthy controls	19	15
Male	8
Female	11
Age (years)			37 (13)	28	46