Cognitive functioning and depressive symptoms in adolescents with inflammatory bowel disease

Table 1 Background data of the study groups

	IBD (n = 34)		JIA (n = 23)
Age (yr)	16.3 ± 1.7	13.6-19.7	15.5 ± 1.2	14.0-18.6
Age at receiving the diagnosis (yr)	12.7 ± 3.5	2.0-16.7	9.0 ± 4.6	1.3-15.0
Gender (female)	15 (44)		14 (61)
Socioeconomic status1
Class I	10 (32)		11 (50)
Class II	9 (29)		3 (14)
Class III	12 (39)		7 (32)
Class IV	0 (0)		1 (5)
State (acute)	20 (59)		0 (0)
Disease duration
Less than one year	6 (18)		2 (9)
One to two years	10 (29)		1 (4)
More than two years	18 (53)		20 (87)

¹Data missing for three inflammatory bowel disease (IBD) and one juvenile idiopathic arthritis (JIA) patients. Data are expressed as absolute n (%) or mean ± SD.