Univariate analysis not only identified a statistically significant association between the presence of EMT+ CTCs and both RFS (log-rank p < 0.001, HR = 2.743, 95% CI = 1.612–4.665) and OS (log-rank p = 0.007, HR = 2.236, 95% CI = 1.246–4.014) but also identified associations between RFS and OS and numerous other factors such as lymphatic metastasis, tumor size, smoking, tumor stage, degree of tumor differentiation, and Ki67 expression. The gene discussed is MKI67; the disease is neoplasm.