High CCNE1 expression was associated with worse DFS (hazard ratio [HR] = 1.88, 95% confidence interval [CI]: 1.22–2.88, log-rank test, p = 0.005) (Figure 2E) and OS (HR = 1.62, 95% CI: 1.18–2.22, log-rank test, p = 0.003) (Figure 2F) in BC. This evidence concerns the gene CCNE1 and breast cancer.