Kidney Failure Risk Equation (KFRE) Tools R package kfre version 0.0.2 Implements the Kidney Failure Risk Equation (KFRE; Tangri and colleagues (2011) <doi:10.1001/jama.2011.451>; Tangri and colleagues (2016) <doi:10.1001/jama.2015.18202>) to compute 2- and 5-year kidney failure risk using 4-, 6-, and 8-variable models. Includes helpers to append risk columns to data frames, classify chronic kidney disease (CKD) stages and end-stage renal disease (ESRD) outcomes, and evaluate and plot model performance. Software Depends: R (>= 3.6) Imports: ggplot2, grDevices, R6 Suggests: devtools, knitr, readxl, rmarkdown, rprojroot, spelling, svglite, testthat (>= 3.0.0) Leonid Shpaner <lshpaner@ucla.edu> Comprehensive R Archive Network (CRAN) Leonid Shpaner [aut, cre] (ORCID: <https://orcid.org/0009-0007-5311-8095>, URL: https://www.leonshpaner.com) MIT + file LICENSE (https://CRAN.R-project.org/package=kfre/LICENSE) 2025-08-28 application/tgz https://CRAN.R-project.org/package=kfre doi:10.32614/CRAN.package.kfre en-US