CKD-EPI 2021 combined creatinine + cystatin C eGFR (race-free)

Estimates GFR using both serum creatinine and cystatin C with the race-free CKD-EPI 2021 combined equation (Inker et al., 2021). This is the most accurate of the CKD-EPI equations when both biomarkers are available.

Usage

egfr_ckdepi_cr_cys_2021(
  creatinine,
  cystatin,
  age,
  sex,
  creatinine_units = "mg/dl",
  label_sex_male = "male",
  label_sex_female = "female"
)

Arguments

creatinine

Numeric vector of serum creatinine.

cystatin

Numeric vector of serum cystatin C in mg/L.

age

Numeric vector of age in years.

sex

Vector of sex labels (see label_sex_male/label_sex_female).

creatinine_units

Units of creatinine: "mg/dl" (default) or "umol/l".

label_sex_male, label_sex_female

Values in sex that denote male and female records. Defaults to "male"/"female".

Value

Numeric vector of eGFR in mL/min/1.73m^2.

References

Inker LA, Eneanya ND, Coresh J, et al. N Engl J Med. 2021;385(19):1737-1749. doi:10.1056/NEJMoa2102953

Examples

egfr_ckdepi_cr_cys_2021(
  creatinine = 1.0, cystatin = 0.9,
  age = 50, sex = "female"
)
#> [1] 80.3607