The risk scores of breast cancer patients in this prognostic model can be obtained by this following formula: Risk score = 0.167 * expression level of P4HA3 + 0.297 * expression level of ZMAT3 +(-0.168) * expression level of TNN + 0.328 * expression level of ENPEP + 0.260 * expression level of PCDHB12 + (-0.298) * expression level of SGCE + (-0.275) * expression level of PDLIM4 + 0.170 * expression level of WNT7B + (-0.146) * expression level of FGD3 + (-0.122) * expression level of IL33. This evidence concerns the gene ZMAT3 and breast cancer.