Table 1.

Baseline Characteristics of 13,120 Participants That Underwent a Comprehensive Health Checkup.

	GIE group (n=9,142)	X-ray group (n=3,978)	p	AS
Age, median [range] (y)	57 [24-94]	53 [21-86]	<0.001*	0.580
Sex
Male, n (%)	5,737 (62.8)	1,641 (41.3)	<0.001†	0.441
Cigarette smoking	1,642 (18.0)	718 (18.0)	0.920†	0.002
positive, n (%)
Alcohol consumption	5,651 (61.8)	2,184 (54.9)	<0.001†	0.143
positive, n (%)
BMI, mean [SD] (kg/m2)	23.7 [3.6]	23.1 [3.6]	<0.001*	0.163

BMI: body mass index, SD: standerd deviation, *: student's t-test, †: Chi-square test, ASD: Absolute standerdized difference