SNAI1 and metastatic malignant neoplasm in the lymph nodes: After adjusting for confounding variables, multivariate analysis showed that FIGO stage (HR = 1.782, P = 0.029), lymph node metastasis (HR = 1.887, P = 0.025), Snail (HR = 1.744, P = 0.036), and E-cadherin (HR = 1.738, P = 0.047) correlated obviously with OS (Table 2).