eGFR Formulas using CKD-EPI equation For adults (age >=18 years)   African American Female If serum creatinine (Scr) <= 0.7 eGFR = 166 x (SCr/0.7) -0.329 x 0.993Age If serum creatinine (Scr) > 0.7 eGFR = 166 x (SCr/0.7) -1.209 x 0.993 Age African American Male If serum creatinine (Scr)