Dialysis modality, KT/V, and serum calcium were identified as factors associated with a reduction in CKD-aP, whereas duration of dialysis, diabetes mellitus, dry skin, serum phosphorus, calcium-phosphorus product, C-reactive protein, iPTH, β2-MG, and serum creatinine (SCr) were identified as factors associated with an increased risk of CKD-aP in maintenance hemodialysis patients (Table 5). Here, CRP is linked to chronic kidney disease.