Chronic kidney disease (GFR less than 60 or kidney damage for at least three months)
MDRD STUDY EQ
CKD-EPI CREATININE EQ (2009)
CKD-EPI CYSTATIN C (2012)
CKD-EPI CREATININE-CYSTATIN C (2012)

This formula is valid only for adults over 18. Use the CKD-epi equations in persons over 70.
Use the Pediatric Calculator for persons under 18 years of age.

As of January 2013, many large commercial clinical
laboratories have changed from using the MDRD Study equation to the
CKD-EPI Creatine 2009 Equation for eGFR reporting.

Remove Body Surface Area Adjustment to Express GFR in ml/min

Remove Body Surface Area Adjustment
to Express GFR in ml/min

Height

feet inches

centimeters

Weight

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pounds

kilograms

BSA (m^{2}) = (W^{0.425} x H^{ 0.725}) x 0.007184
Unadjusted CKD-EPI eGFR (ml/min) = eGFR (ml/min/1.73 m^{2}) x BSA (m^{2}) / 1.73