2.3.Statistical analyses:
Statistical analyses were performed with SPSS v.24. The chi-square test
was used the determine correlations among the variables. Statsitically
analyses of prognostic effects of pathological tumour stage, LNM, LVI,
PNI, necrosis and EMT markers on OS were performed. Univariate OS were
estimated using the Kaplan-Meier method and log-rank statistics.
Multivariate Cox regression models addresses OS. Statsitical
significance was set at p<0.05.