Analysis of data showed significantly higher concentrations of MMP-7 (median 1.49 ng/mL) and CA 15-3 (median 20.16 IU/mL) in the BC-total group of patients than in the control group of healthy women (0.84 ng/mL, p < 0.0001; 15.95 IU/mL, p = 0.0045, respectively). Here, MMP7 is linked to breast cancer.