Endoscopic balloon dilation of Crohn’s disease strictures-safety, efficacy and clinical impact

Table 1 Baseline characteristics of crohn’s disease patients with prior ileocecal resection/right hemicolectomy

Characteristic	CD (n = 162)
Female/male (n)	77/85
Disease duration in years (median; min-max)	17.1 (3.3-52.1)
Follow-up time in years (median; min-max)	4.4 (1.3-6.8)
Time between surgery and index colonoscopy in years (median; min-max)	7.7 (0.3-37.6)
Age at index colonoscopy (mean; standard deviation)	42.6 (± 13.4)
Montreal classification (n; %)
Age at diagnosis
A1	25 (15.5)
A2	116 (72)
A3	20 (12.4)
Disease location
L1	89 (54.9)
L2	9 (5.6)
L3	55 (34)
L1-4	7 (4.3)
L3-4	2 (1.2)
Behavior
B1	6 (3.7)
B2	77 (47.5)
B3	79 (48.8)
Perianal disease	38 (23.5)
Smoking habits (n; %)
Non-smoker	86 (55.1)
Ex-smoker	34 (21.8)
Current smoker	36 (23.1)
Medication at index colonoscopy
Thiopurines	111 (68.5)
Anti-TNFα	59 (36.4)

TNFα: Tumor necrosis factor α.