Longitudinal analyses of change in hematocrit per change in eGFR, by baseline participant characteristics. eGFR, estimated glomerular filtration rate; Proteinuria, urine protein-to-creatinine ratio; Age (years); BMI, body mass index (kg/m2); Albumin, serum albumin (g/dL); CRP, C-reactive protein (mg/dL). * denotes P-interaction <0.05.