CKD-EPI Creatinine-Cystatin C Formula

**Semantic type:** Quantitative Concept

**Definition:** A formula to estimate glomerular filtration rate that takes into account sex, age, race, serum creatinine (SCr) and serum cystatin C (Scys). eGFR(mL/min/1.73 m2)=135 x min(SCr/k, 1)a x max(SCr/k, 1)-0.601 x min(Scys/0.8, 1)-0.375 x max(Scys/0.8, 1)-0.711 x 0.995^Age x 0.969 [if female] x 1.08 [if black]. (Inker LA, Schmid CH, Tighiouart H, et al. Estimating glomerular filtration rate from serum creatinine and cystatin C. N Engl J Med. 2012;367(1):20-29.)

**Synonyms:** - CKD-EPI CREATININE-CYSTATIN C FORMULA - CKD-EPI Creatinine-Cystatin C 2012 Formula