Code files corresponding to the manuscript Association of Race and Ethnicity with Priority for Deceased Donor Kidney Transplant by Asfour, Zhang, et al.
All files are written and tested using R 4.2.2. Files should be run in this order:
Sets up dataset to calculate KDPI score, based on the April 2023 guide available at: https://optn.transplant.hrsa.gov/media/j34dm4mv/kdpi_guide.pdf.
KDRI to KDPI is based on the April 2023 Mapping Table, available at: https://optn.transplant.hrsa.gov/media/wnmnxxzu/kdpi_mapping_table.pdf.
Updated 5/10/23: Added.
Updated 9/27/23: Additional section converting EPTS to a time-dependent variable is added.
Sets up dataset of all 2015-2020 kidney waitlist candidates from over 18 and excluding living donors from the SRTR (Scientific Registry of Transplant Recipients) CAND_KIPA raw data. Analysis is done at the registration level.
EPTS score is based on the April 2023 guide available at: https://optn.transplant.hrsa.gov/media/pn1pt2bc/epts_guide.pdf.
EPTS percentiles are based on the April 2023 Mapping Table, available at: https://optn.transplant.hrsa.gov/media/g3xfajp4/epts_mapping_table.pdf.
Updated 2/16/23: Different dialysis time variables are created. Additional gender variable is added.
Updated 3/8/23: Code is overhauled to add alternative dataset with patients waitlisted in 2015 removed, and to work with the other files.
Updated 5/12/23: Renamed to candidate_data_prep and converted to a notebook. Includes living donors.
Updated 5/15/23: Race variable modified to account for other cases.
Sets up corresponding dataset of kidney transplant recipients, based on SRTR TX_KI data.
Updated 2/16/23: Different dialysis time variables are created. Additional gender variable is added.
Updated 3/8/23: Code is overhauled, time variables are reworked. Merging with candidates file is now performed in recipients_analysis.Rmd.
Updated 5/12/23: Renamed to recipients_data_prep and converted to a notebook. Selection criteria is now based on transplant date, not listing date.
Updated 5/15/23: Race variable modified to account for other cases. Time to death (general) is added.
Runs tabulations and multivariable regressions for EPTS and KDPI scores in the candidates dataset. Runs competing risks analysis with KDPI score.
Updated 11/15/22: Figures are changed.
Updated 11/29/22: Incorrect labelling is changed.
Updated 2/22/23: Changed to reflect updated variables. Labelling is updated. Error bars added.
Updated 3/8/23: Changed to work with the new output files.
Updated 3/17/23: Sections removed to contain only necessary code for article. Updated to include living donors.
Updated 3/22/23: Tables updated.
Updated 5/12/23: Updated to be compatible with the new code.
Updated 5/23/23: Updated with new plots and tables.
Updated 1/13/24: Plots reworked to fit journal guidelines, overall sensitivity analysis added.
Candidate analyses on the two alternative candidate datasets.
Updated 3/8/23: Added.
Updated 3/17/23: Sections removed to contain only necessary code for article. Updated to include living donors.
Updated 3/22/23: Tables updated.
Updated 5/12/23: Updated to be compatible with the new code.
Runs survival analysis for EPTS scores in the recipients dataset. Requires files produced by candidates.R and recipients.R.
Updated 3/8/23: Updated to include all post-transplant recipient and competing-risks analyses.
Updated 3/15/23: Sections removed to contain only necessary code for article.
Updated 3/19/23: Added sensitivity analysis with top 20% KDPI filter.
Updated 5/12/23: Updated to be compatible with the new code.
Updated 5/15/23: Added additional analyses for general death.
Updated 5/21/23: Coding typo with a time variable fixed.
Updated 1/13/24: Minor typos regarding line numbering corrected.