Table 2.

Multivariate analysis of clinicopathological factors associated with LNMM.

Variables	OR (95% CI)	P value
Tumor differentiation	1.266 (4.274-37.037)	0.013∗
Lymphatic infiltration	2.178 (1.635-6.327)	0.009∗
The depth of tumor invasion	3.755 (1.716-8.218)	0.004∗
Lauren classification	1.256 (0.513-3.631)	0.157
Tumor size	1.907 (0.706-5.156)	0.203
TNM staging	3.152 (1.547-7.589)	0.002∗

LNMM: lymph node micrometastasis; TNM: tumor node metastasis; OR: odd ratio; CI: confidence interval; ^∗P < 0.05.