The upregulated expression of four miRNAs, miR-21, miR-210, miR-221 and Let-7a showed a significant (p ≤ 0.05) correlation with several most common clinicopathological and demographic variables such as age, menopausal status, oral contraceptives use, Ki67 expression, tumor grade, clinical stage, and BMI of TNBC patients (Table 1 and S1 Table). Here, MKI67 is linked to neoplasm.