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eGFR (CKD-EPI 2021 Creatinine)

CKD-EPI 2021 creatinine equation (Inker et al., NEJM 2021)

Estimates glomerular filtration rate from serum creatinine, age, and sex using the 2021 race-free CKD-EPI creatinine equation, with KDIGO G1-G5 staging.

Also searched as: renal function · contrast · nephrology

Sex
Age

Adults only (>= 18 years).

years
Serum creatinine
mg/dL
Information
Incomplete input
  • Please provide: sex, age, serum creatinine.

How this tool works

The 2021 CKD-EPI creatinine equation was refit without a race coefficient and is the current recommended default for adults: eGFR = 142 x min(Scr/k, 1)^a x max(Scr/k, 1)^-1.200 x 0.9938^Age, multiplied by 1.012 for females, where k is 0.7 (female) or 0.9 (male) and a is -0.241 (female) or -0.302 (male). Values are normalized to 1.73 m2 body surface area. The equation is not validated for children, pregnancy, dialysis, or extremes of muscle mass.

References

Implemented from the cited published sources. Educational use only; confirm against current guidelines before clinical use.

Clinical questions that use this

Named by 31 vetting guides, including these.