Estimated glomerular filtration rate formula

Usage

egfr(scr, age, sex, race)

egfr_norace(scr, age, sex)

Arguments

scr: Numeric. Serum creatinine \(\mu\) mol/L
age: Numeric. Year.
sex: Character. Either "male" or "female".
race: Character. Either "other","white", "black", "hispano-american", "asian", "unknown". Specifying race = "black" change the formula of eGFR.

Value

A numeric

Details

See references for the formula. egfr() uses the formula from Levey et al. (2009), and egfr_norace() uses the formula from Inker et al. (2021).

References

Levey, A. S., Stevens, L. A., Schmid, C. H., Zhang, Y., Castro III, A. F., Feldman, H. I., ... & CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration)*. (2009). A new equation to estimate glomerular filtration rate. Annals of internal medicine, 150(9), 604-612.

Inker, L. A., Eneanya, N. D., Coresh, J., Tighiouart, H., Wang, D., Sang, Y., ... & Levey, A. S. (2021). New creatinine-and cystatin C–based equations to estimate GFR without race. New England Journal of Medicine, 385(19), 1737-1749.