The mixed-effects linear model did not show significant associations between the prevalence or severity of CKD-aP and age, sex, diabetes, use of HDF versus HD (-0.071, SE 0.05, 95% CI -0.170, 0.027, p = 0.157), eKt/V (-0.043, SE 0.070, 95% CI -0.180, 0.094, p = 0.54), volume of substitution, use of a tunneled catheter versus a fistula, frequency of dialysis sessions (n/week), dialysis session duration (in hours) and CRP (Supplementary Tables 1–5). Here, CRP is linked to chronic kidney disease.