2.

Univariate analysis of continuous variables

Continuous variables*	Median (IQR)		P
Continuous variables*	Negative LN	Positive LN	P
EUS, endoscopic ultrasonography; LN, lymph nodes; CT, computed tomography; IQR, interquartile range; , Continuous variables are described by median values and quartiles because they were non-normally distributed. For non-normally distributed variables, the rank sum test was used; , If there were no LNs detected by EUS, the diameter of lymph node on EUS was 0; **, If there were no LNs detected by CT, the diameter of lymph node on CT was 0.
Age (year)	57 (48−63)	59 (48−67)	0.42
Tumor size on gastroscopy (cm)	2.0 (1.5−3.0)	3.0 (2.5−4.0)	<0.001
Maximum diameter of the lesion on EUS (cm)	3.3 (2.3−4.5)	4.4 (3.2−6.3)	0.001
Thickness of the tumor on EUS (mm)	6.5 (4.5−8.4)	10.0 (7.6−13.4)	<0.001
Maximum diameter of LN on EUS (mm)	0.0 (0.0−0.0)**	0.0 (0.0−7.8)	<0.001
Maximum diameter of LN on CT (mm)	0.0 (0.0−5.0)***	0.0 (0.0−8.0)	<0.001
Thickness of the lesion on CT (mm)	6.0 (0.0−10.0)	9.0 (7.0−12.0)	<0.001