Fig. 6

Relationships between 5hmdC levels, age, and eGFR. The molar ratios of 5hmdC in the renal cortex (a and b) and renal medulla (c) were plotted with age (a and c) and eGFR (b). The regression coefficient (R2) and p value were calculated by a linear regression analysis and indicated on the scatterplot with a regression line. The correlation coefficient and p value calculated by Spearman’s rank correlation analysis are described under the graphs