In the articles «Evaluation of the correlation of vasculogenic mimicry, Notch4, DLL4, and KAI1/CD82 in the prediction of metastasis and prognosis in non-small cell lung cancer», «Expressions of KAI1 and E-cadherin in non-small cell lung cancer and their correlation with vasculogenic mimicry», «Vasculogenic mimicry and expression of slug and vimentin correlate with metastasis and prognosis in non-small cell lung cancer» the authors employed multivariate Cox proportional hazards regression analysis to assess the independent prognostic value of various factors (29, 30, 35). This evidence concerns the gene CDH1 and non-small cell lung carcinoma.