Single nucleotide polymorphisms of OCTN1, OCTN2, and DLG5 genes in Greek patients with Crohn’s disease

Table 1 Demographic characteristics and clinical features of 120 patients with Crohn’s disease and of 85 patients with ulcerative colitis

	Crohn’s disease	Ulcerative colitis
Total number	120	85
Sex (male/female)	58/62	42/43
Age of diagnosis (mean±SD yr)	29.82±14.00	33.36±14.24
Family history in first-degree relative (%)	4 (3.3 %)	5 (5.9%)
Smoking habit (%)
Never	50 (41.7%)	48 (56.5%)
Ex-smoker	11 (9.2%)	14 (16.5%)
Current	59 (49.2%)	23 (27.1%)
Localization of disease
Ileal	39 (32.5%)
Colonic	11 (9.2%)
Ileocolitis	67 (55.8%)
Upper gastroenteric	3 (2.5%)
Disease features
Inflammatory	78 (65%)
Fibrostenotic	32 (26.7%)
Fistulizing	10 (8.3%)
Extra-intestinal manifestations
Arthritis	16 (13.3%)
Erythema nodosum	5 (4.2%)