Table 1.

Demographic Information of the IBD Patients

	Ulcerative Colitis (N=454)	Crohn’s Disease (N=333)	p value
Gender			0.002
Male	245 (54.0%)	217 (65.2%)
Female	209 (46.0%)	116 (34.8%)
Settlement			<0.01
Rural area	105(23.1%)	115(34.5%)
Urban area	349(76.9%)	218(65.5%)
Smoking history	69(15.2%)	58(17.4%)	>0.05
Drinking history	29(6.4%)	18 (5.4%)	>0.05
Age (y)
Diagnosis median age	52(37, 61)	38(26.5, 56)	<0.01
14–19	8(1.8%)	20(6.0%)	0.001
20–29	48(10.6%)	81(24.3%)	<0.001
30–39	66(14.5%)	73(21.9%)	0.007
40–49	82(18.1%)	34(10.2%)	0.002
50–59	124(27.3%)	67(20.1%)	0.020
60–69	82(18.1%)	54(16.2%)	0.499
70–79	40(8.7%)	3(0.9%)	<0.001
≥80	4(0.9%)	1(0.3%)	0.403