soft: SOFT score (Survival Outcomes Following Liver...
In transplantr: Audit and Research Functions for Transplantation

Description Usage Arguments Details Value Examples

A vectorised function to calculate SOFT Scores for predicting patient survival after liver transplantation The units for donor serum creatinine are in µmol/l and recipient serum albumin in g/l but they can be changed to mg/dl and g/dl respectively by setting the Units parameter to "US".

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soft(Age, BMI, PrevTx, AbdoSurg, Albumin, Dx, ICU, Admitted, MELD,
  LifeSupport, Encephalopathy, PVThrombosis, Ascites, PortalBleed,
  DonorAge, DonorCVA, DonorSCr, National, CIT, Units = "SI")

`Age`	numeric vector of patient ages in years
`BMI`	numeric vector of patient BMI in kg/m2
`PrevTx`	numeric vector of number of previous transplants
`AbdoSurg`	numeric vector of whether previous abdominal surgery (1 = "yes", 0 = "no")
`Albumin`	numeric vector of serum albumin in g/l
`Dx`	numeric vector of whether on dialysis before transplant (1 = "yes", 0 = "no")
`ICU`	numeric vector of whether patients in intensive care unit before transplant (1 = "yes", 0 = "no")
`Admitted`	numeric vector of whether admitted to hospital pre-transplant (1 = "yes", 0 = "no")
`MELD`	numeric vector of MELD scores
`LifeSupport`	numeric vector of whether on life support pre-transplant (1 = "yes", 0 = "no")
`Encephalopathy`	numeric vector of whether encephalopathy present (1 = "yes", 0 = "no")
`PVThrombosis`	numeric vector of whether portal vein thrombosis (1 = "yes", 0 = "no")
`Ascites`	numeric vector of whether ascites pre-transplant (1 = "yes", 0 = "no")
`PortalBleed`	numeric vector of whether portal bleeding in 48 hours pre-transplant (1 = "yes", 0 = "no")
`DonorAge`	numeric vector of donor ages in years
`DonorCVA`	numeric vector of whether donor cause of death is CVA/stroke (1 = "yes", 0 = "no")
`DonorSCr`	numeric vector of donor terminal serum creatinine
`National`	numeric vector of whether national allocation (1 = "yes", 0 = "no")
`CIT`	numeric vector of cold ischaemic time in hours
`Units`	units to use for creatinine and albumin, "SI" (default) for µmol/l and g/l, "US" for mg/dl and g/dl

Reference: Rana A, Hardy MA, Halazun KJ, et al. Survival Outcomes Following Liver Transplantation (SOFT) Score: A Novel Method to Predict Patient Survival Following Liver Transplantation. American Journal of Transplantation 2008; 8:2537-2546.

numeric vector of SOFT Scores

soft(Age = 35, BMI = 20, PrevTx = 0, AbdoSurg = 1, Albumin = 30, Dx = 0,
    ICU = 0, Admitted = 0, MELD = 29, LifeSupport = 0, Encephalopathy = 1,
    PVThrombosis = 0, Ascites = 1, PortalBleed = 0, DonorAge = 44, DonorCVA = 0,
    DonorSCr = 110, National = 0, CIT = 8) # 7