CRP and chronic kidney disease: Factors associated with an increased risk of CKD-ap included duration of dialysis treatment (OR = 1.51, 95% CI: 1.15–1.88), primary disease (OR = 1.43, 95% CI: 0.87–1.99), dry skin disease (OR = 2.46, 95% CI: 1.74–3.19), phosphorus (OR = 1.18, 95% CI: 0.55–1.81), Ca - P product (OR = 2.18, 95% CI: 1.14–3.22), C - reactive protein (CRP) (OR = 1.14, 95% CI: 0.78–1.51), iPTH (OR = 2.45, 95% CI: 0.81–4.09), β2 - MG(OR = 2.24, 95% CI: 0.94–3.53), and SCr (OR = 1, 95% CI: 1.001–1.005).