Furthermore, tumor progression was also significantly associated with the expression level of TGF-β1, with a remarkably higher percentage of recurrence in the high expression group (27.7% vs. 8.7%, P = 0.029) (Figure 5C), but not significantly associated with the expression level of β-catenin (16.3% vs. 20.5%, P = 0.775) (Figure 5D). This evidence concerns the gene TGFB1 and neoplasm.