A: Multivariate cox proportional hazards results about doxorubicin, rs2817101, rs2817101 × doxorubicin (interaction term) factors in all patients. B: Pairwise Kaplan-Meier survival analysis in patients with and without drug treatment separately of rs2817101. C: Multivariate cox proportional hazards results about rs2817101, age, pathologic stage, histological subtypes, Lymph nodes status, ER, PR and HER2 status factors respectively patients with and without drug treatment. Significant P-value threshold was set at 0.05. D: Boxplot of GSTA1 expression levels (log2(TPM + 1)) based on rs2817101 genotypes. E. Kaplan-Meier survival analysis between high and low GSTA1 expression patients in GSE25055.