This analysis showed that the patients in this cohort with unmethylated GSTP1 (HR: 7.52, CI: 1.76-32.07, p = 0.006) and FOXC1 (HR: 7.32, CI: 1.11-48.31, p = 0.039) showed a higher risk of dying from breast cancer compared with patients methylated for the same genes (Table 2). Here, GSTP1 is linked to breast cancer.