Table 1.

eGFR Equations

EquationYear DevelopedFiltration MarkersDemographic Variables
eGFRcr[ASR]2009creatinineage, sex, race
eGFRcr[AS]2021creatinineage, sex
eGFRcys[AS]2012cystatin cage, sex
eGFRcr-cys[AS]2021creatinine, cystatin cage, sex