Skip to contents

Calculate eGFR Using CKD-EPI 2021 Creatinine Equation

ckdepi_2021_egfr.Rd

Calculate eGFR Using CKD-EPI 2021 Creatinine Equation

Usage

ckdepi_2021_egfr(sexf, age, creat)

Arguments

sexf

boolean value of sex Female: TRUE, Male: FALSE

age

age of subject (years)

creat

creatinine levels of subject (mg/dL)

Value

the eGFR value (mL/min/1.73m2)

Details

The CKD-EPI 2021 creatinine equation (race-free): $$eGFR = 142 \cdot \min(S_{cr}/\kappa, 1)^\alpha \cdot \max(S_{cr}/\kappa, 1)^{-1.2} \cdot 0.9938^A \cdot 1.012^F$$

where:

  • \(S_{cr}\) = serum creatinine (mg/dL)

  • \(\kappa\) = 0.7 (female) or 0.9 (male)

  • \(\alpha\) = -0.241 (female) or -0.302 (male)

  • \(A\) = age (years)

  • \(F\) = 1 (female) or 0 (male)

See also

Other renal_function: aegfr(), ckdepi_2009_egfr(), ckdepi_2021_egfr_cystatin(), crcl(), egfr(), mdrd_egfr(), rfc(), schwartz_egfr()

Examples

e <- ckdepi_2021_egfr(TRUE, 24, 1)

df <- data.frame(
  "SEXF" = c(TRUE, FALSE, TRUE, FALSE),
  "RACEB" = c(FALSE, FALSE, TRUE, FALSE),
  "AGE" = c(24, 24, 23, 24),
  "CREAT" = c(1, 1, 2, 1)
)
df <- dplyr::mutate(df, egfr = ckdepi_2021_egfr(SEXF, AGE, CREAT))
df
#>    SEXF RACEB AGE CREAT      egfr
#> 1  TRUE FALSE  24     1  80.67934
#> 2 FALSE FALSE  24     1 107.78422
#> 3  TRUE  TRUE  23     2  35.33681
#> 4 FALSE FALSE  24     1 107.78422