CKD-EPI 2021
New Creatinine- and Cystatin C-Based Equations to Estimate GFR without Race (2021)
Population
Multicohort pooled development and validation populations for glomerular filtration rate estimation
Study Type
Equation development and validation study
About This Dataset
This paper introduced the 2021 race-free CKD-EPI creatinine equation used to derive eGFR from serum creatinine, age, and sex for LabNorms eGFR pages.
Limitations
- eGFR is an estimate derived from serum creatinine rather than a directly measured filtration rate
- Equation performance can vary by body composition, diet, muscle mass, and clinical context
- LabNorms applies the creatinine-only 2021 CKD-EPI equation because cystatin C is not used in these pages
Used for
Demographic Slices
- Estimated Glomerular Filtration Rate (eGFR) - Females, Age 20-29
- Estimated Glomerular Filtration Rate (eGFR) - Females, Age 30-39
- Estimated Glomerular Filtration Rate (eGFR) - Females, Age 40-49
- Estimated Glomerular Filtration Rate (eGFR) - Females, Age 50-59
- Estimated Glomerular Filtration Rate (eGFR) - Females, Age 60-69
- Estimated Glomerular Filtration Rate (eGFR) - Females, Age 70+
- Estimated Glomerular Filtration Rate (eGFR) - Males, Age 20-29
- Estimated Glomerular Filtration Rate (eGFR) - Males, Age 30-39
- Estimated Glomerular Filtration Rate (eGFR) - Males, Age 40-49
- Estimated Glomerular Filtration Rate (eGFR) - Males, Age 50-59
- Estimated Glomerular Filtration Rate (eGFR) - Males, Age 60-69
- Estimated Glomerular Filtration Rate (eGFR) - Males, Age 70+