It’s interesting to note that in terms of the prognosis and survival connection of patients with breast cancer, the expression level of NOTCH3 in the Kaplan–Meier plotter database produced findings that were comparable to those in the GEPIA database (RFS HR = 0.88, 95% CI = 0.79–0.97, P = 0.0095). The gene discussed is NOTCH3; the disease is breast cancer.