Correlation between age of onset and gastrointestinal stenosis in hospitalized patients with Crohn's disease

Table 1 Demographic variables and disease characteristics of Crohn’s disease

Variable	No. or median/mean	% or range
Total number of patients	122
Male gender	85	69.67
Age of onset (yr)	34.72	15.15
Duration of disease (mo)	64	1-492
Gastrointestinal stenosis	72	59.02
L1	33	27.05
L2	27	22.13
L3	59	48.36
L4	2	1.64
L1 + L4	1	0.82
B1 (B1p)	42 (5)	34.43
B2 (B2p)	65 (2)	53.28
B3 (B3p)	8 (1)	6.56
B2 + B31	7	5.74
Disease activity: Mild	25	20.49
Disease activity: Moderate	84	68.85
Disease activity: Severe	13	10.66

¹As the disease progresses, stricturing and penetrating disease behaviors can coexist. L and B: The phenotype of the Montreal classification of inflammatory bowel disease. p: Combined with perianal disease[29].