Childhood-onset inflammatory bowel diseases associated with mutation of Wiskott-Aldrich syndrome protein gene

Table 1 Characteristics of patients with childhood-onset inflammatory bowel disease in this study (n = 18)

Disease	UC	CD	IBD-U
n	10	5	3
Sex (male, female)	8, 2	4, 1	1, 2
Median age at onset in yr (range)	9.5 (1-13)	12.0 (6-13)	6.0 (1-9)
Symptoms (number of positive patients)
Diarrhea	10	5	1
Mucosal aphthae	1	2	0
Eczema	0	1	0
Skin abscesses	0	0	0
Thrombocytopenia	0	0	0
Recurrent infection	0	0	0

UC: Ulcerative colitis; CD: Crohn’s disease; IBD-U: Inflammatory bowel disease-unclassified.