Relative transcript levels of miR-186 in PCa samples with regard to clinicopathological parameters. (A) Comparison of the miR-186 expression levels in organ-confined (pT2, n = 23) versus nonorgan-confined tumors (pT3 + 4, n = 27). (B) Comparison of the miR-186 expression levels in patient samples without any initial metastases (N0M0, n = 40) versus those with initial metastases (N+/M+, n = 10). Transcript levels of miR-186 were normalized to RNU48. P values were calculated by the Mann–Whitney U test with a two-sided 95% confidence interval. Outliers are indicated by circles; extreme values are indicated by asterisks.