Association of Kidney Disease Outcomes With Risk Factors for CKD: Findings From the Chronic Renal Insufficiency Cohort (CRIC) Study

Background Various indicators of progression of chronic kidney disease (CKD) have been used as outcomes in clinical research studies. The effect of using varying measures on the association of risk factors with CKD progression has not been well characterized. Study Design Prospective cohort study. Setting & Participants The Chronic Renal Insufficiency Cohort (CRIC) Study (N = 3,939) enrolled men and women with mild to moderate CKD, 48% of whom had diabetes and 42% were self-reported black race. Predictors Age, race, sex, diabetes, baseline estimated glomerular filtration rate (eGFR), proteinuria, and other established CKD risk factors. Outcomes Death, end-stage renal disease (ESRD), and eGFR events, including: (1) eGFR halving, (2) eGFR < 15 mL/min/1.73 m2 , (3) eGFR halving and