*4.7. Statistical Analysis*

Correlations were analyzed using Spearman's rank correlation coefficient (Spearman's rho) or the Pearson correlation coefficient. To present relative gene expression, ΔCq was calculated for miRNA expression [33]. The *t*-test was used to calculate the difference between the expression of uromodulin between the control group and the kidney transplant group. For all statistical analyses, SPSS analytical software (IBM SPSS statistics, version 24.0, Armonk, NY, USA) was used with a cut-off point at *p* < 0.05.
