meld: MELD score

In transplantr: Audit and Research Functions for Transplantation

Description

A vectorised function to calculate the MELD score using µmol/l for bilirubin and creatinine. The units can be changed to mg/dl by setting the optional units parameter to "US". If the patient is on CVVH or has been dialysed at least twice in the same week, the dialysis argument should be set to 1, which changes the creatinine level used in the formula to 4mg/dl (353µmol/l). Following UNOS guidelines, the values for INR as well bilirubin and creatinine (in mg/dl) are set to a minimum value of 1 if less than 1.0

Usage

meld(INR, bili, creat, dialysis, units = "SI")

Arguments

INR	numeric vector of INR
bili	numeric vector of bilirubin (µmol/l)
creat	numeric vector of creatinine (µmol/l)
dialysis	numeric vector of whether on dialysis/CVVH (1 = yes, 2 = no)
units	Units for bilirubin and creatinine ("SI" for µmol/l (default), "US" for mg/dl)

Details

Reference: Kamath PS, Wiesner RH, Malinchoc M, et al. A model to predict survival in patients with end-stage liver disease. Hepatology 2001; 33:464-470.

Value

MELD score

Examples

meld(INR = 2.0, bili = 54, creat = 170, dialysis = 0)
meld(INR = 2.0, bili = 3.1, creat = 1.9, dialysis = 0, units = "US")

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