egfr.all_adults.cys: Calculate eGFR by all cystatin-based equations for adults

In kidney.epi: Kidney-Related Functions for Clinical and Epidemiological Research

Calculate eGFR by all cystatin-based equations for adults

Description

Calculate eGFR by all cystatin-based equations for adults

Usage

egfr.all_adults.cys(cystatin, age, cystatin_units = "mg/L", max_age = 100)

Arguments

cystatin	Numeric vector. Serum cystatin, could be expressed in "mg/L" or "nanomol/L". Units of measurement should be defined in variable cystatin_units (if not defined explicitly by user, the default value is "mg/L").
age	Numeric vector. Age, in years.
cystatin_units	Character string. Units in which serum cystatin is expressed. Could be one of the following: "mg/L" or "nanomol/L"
max_age	Numeric. Maximal age suitable for the equation application, in years. By default is 100 years, but change this value in case you would like to apply equation to older persons.

Details

Calculate eGFR by all cystatin-based equations for adults available in the kidney.epi package.

References to the equations are available in single functions of the kidney.epi package.

Citation: Bikbov B. kidney.epi: Kidney-Related Functions for Clinical and Epidemiological Research. Scientific-Tools.Org, https://Scientific-Tools.Org. DOI: 10.32614/CRAN.package.kidney.epi

Value

numeric eGFR expressed in ml/min/1.73m².

Author(s)

Programming: Boris Bikbov https://www.linkedin.com/in/boris-bikbov.

Examples

# for a single patient
egfr.all_adults.cys (cystatin = 1.4, age = 60,
  cystatin_units = "mg/L")
# for a dataset - see vignettes for details
# egfr.all_adults.cys (cystatin = dta$cys, age = dta$age, 
#  cystatin_units = "mg/L")

kidney.epi documentation built on June 8, 2025, 10:54 a.m.