Table 4

Multivariate analysis on disease-related survival (Cox proportional hazard model)

A multivariate analysis was performed using a Cox proportional hazards model with the following covariates: tumor stage, lymph node metastasis, distant metastasis, histological type, differentiation, expression of E-cadherin, and expression of β-catenin

FactorRelative risk (95% confidence interval)P
Lymph node metastasis (+ vs. −)4.5920 (2.7193–7.7540)<0.0001
Tumor stage (T1 vs. T2, T3, T4)1.8677 (1.4981–2.3284)<0.0001
β-Catenin (preserved vs. reduced)0.4520 (0.2820–0.7245)0.0007
Differentiation (well, moderate vs. poorly)1.4769 (1.0843–2.0119)0.0135