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CKD-EPI 2009 creatinine eGFR (with race coefficient)

Source: R/ckd-epi.R
egfr_ckdepi_cr_2009.Rd

Estimates GFR from serum creatinine using the original CKD-EPI 2009 creatinine equation (Levey et al., 2009), which includes a race coefficient. Retained for historical comparison; the race-free egfr_ckdepi_cr_2021() is now recommended.

Usage

egfr_ckdepi_cr_2009(
  creatinine,
  age,
  sex,
  ethnicity = NULL,
  creatinine_units = "mg/dl",
  label_sex_male = "male",
  label_sex_female = "female",
  label_afroamerican = c("black", "Black")
)

Arguments

creatinine

Numeric vector of serum creatinine.

age

Numeric vector of age in years.

sex

Vector of sex labels (see label_sex_male/label_sex_female).

ethnicity

Optional vector of ethnicity labels. Records matching label_afroamerican receive the Black race coefficient (1.159); all others receive 1.0. If NULL (default) no race coefficient is applied.

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".

label_afroamerican

Values in ethnicity denoting Black/African American race. Defaults to c("black", "Black").

Value

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

References

Levey AS, Stevens LA, Schmid CH, et al. A new equation to estimate glomerular filtration rate. Ann Intern Med. 2009;150(9):604-612. doi:10.7326/0003-4819-150-9-200905050-00006

Examples

egfr_ckdepi_cr_2009(creatinine = 1.0, age = 50, sex = "female")
#> [1] 65.63762
egfr_ckdepi_cr_2009(1.0, 50, "female",
  ethnicity = "black", label_afroamerican = "black"
)
#> [1] 76.07401