ALB and heart failure: After adjustment for confounders and accounting for nonlinear associations (Model 4), CAD, heart failure, missed HD treatments due to hospitalization, lower dialysate potassium, lower albumin, lower body mass index, lower hemoglobin, higher serum calcium, greater ESA dosing, and both low and high nPCR (J-shaped risk curve; quadratic) were associated with higher CPA odds.