MMP2 and Urinary incontinence: The expression of MMP2 was upregulated in patients with urinary incontinence (P<0.001, 95%CI = 0.49–0.63) (Fig. 3a), and a negative correlation existed between MMP2 and miR-330-3p levels in these patients (r= -0.7431, P<0.001, 95%CI= -0.85 to -0.58) (Fig. 3b).