Pure Well-Differentiated Adenocarcinoma Is a Safe Factor for Lymph Node Metastasis in T1 and T2 Colorectal Cancer: A Pilot Study

Table 3

The multivariate analysis of the risk factors of LNM in T2 cancers.

	Multivariate analysis
	OR	95% CI	value
Location rectum (vs. colon)	6.848	1.661 , 28.239	0.008
Tumor size ≥25 mm (vs. <25 mm)	9.583	2.027 , 45.317	0.004
Lymphatic invasion	10.276	2.181 , 48.424	0.003
Poor histology	4.773	1.135 , 20.073	0.033
Non-PWDA	1.620	0.032 , 4.511	0.443

LNM: lymph node metastasis: PWDA: pure well-differentiated adenocarcinoma; OR: odds ratio; CI: confidence interval.