Fig. 1From: Role of GDF-15, YKL-40 and MMP 9 in patients with end-stage kidney disease: focus on sex-specific associations with vascular outcomes and all-cause mortalityLinear regression analysis with YKL-40 as dependent variable and TMAO—living donor transplantation cohort. Correlation coefficient for males (n = 39): r = 0.298, p = 0.077; for females (n = 20): r = − 0.169, p = 0.474Back to article page