pdri: Pancreas donor risk index

In transplantr: Audit and Research Functions for Transplantation

Description

A vectorised function to calculate the Pancreas Donor Risk Index as published by Axelrod et al. By default, the serum creatinine is used in mcmmol/l but this can be changed to mg/dl by setting the optional units parameter to "US"

Usage

pdri(age, sex, creat, eth, bmi, height, cva, cit, dcd, intent = c("SPK",
  "PAK", "Other"), units = "SI")

Arguments

age	numeric vector of ages in years
sex	character vector of patient sex ("F" for female, "M" for male)
creat	numeric vector of serum creatinine (µmol/l by default)
eth	character vector of ethnicity, one of "asian", "black" or "other" in each case
bmi	numeric vector of body mass index (BMI)
height	numeric vector of heights in centimetres
cva	numeric vector of whether CVA is cause of death (1 = yes, 0 = no)
cit	numeric vector of cold ischaemic times in hours
dcd	numeric vector of whether donor after circulatory death (1 = DCD, 0 = DBD)
intent	character vector of implant intent, "PAK" for pancreas after kidney or "other"
units	single character string for creatinine units: one of "SI" (for µmol/l) or "US" (for mg/dl)

Details

Reference: Axelrod DA, Sung RS, Meyer KH, et al. Systematic evaluation of pancreas allograft quality, outcomes and geographic variation in utilization. Am J Transplant 2010; 10(4):837-45.

Value

numeric vector of pancreas donor risk index values

Examples

pdri(age = 28, sex = "M", creat = 1.0, eth = "other", bmi = 24,
height = 173, cva = 0, cit = 12, dcd = 0, units = "US") # 1.00

pdri(age = 45, sex = "M", creat = 88.4, eth = "other", bmi = 24,
height = 173, cva = 0, cit = 12, dcd = 0, units = "SI") # 1.56

Example output

[1] 1
[1] 1.559762

transplantr documentation built on Feb. 28, 2020, 5:07 p.m.