kidney {mdhglm}

Kidney Infection Data

Description

This data consist of times until the first and second recurrences of kidney infection in 38 patients using a portable dialysis machine (McGilchrist and Aisbett, 1991; Therneau and Lumley, 2015). Each survival time is the time until infection since the insertion of the catheter.

Usage

data("kidney")

Format

A data frame with 76 observations on the following 7 variables.

id

patients identifier for 38 patients

time

time until infection since the insertion of the catheter

status

event stuatus (=1; infection, =0; censoring)

age

age of patients in years

sex

1=male, 2=female

disease

a factor for disease type with levels Other, GN, AN and PKD

frail

frailty estimate from original paper

References

McGilchrist, C.A. and Aisbett, C.W. (1991). Regression with frailty in survival analysis. Biometrics, 47, 461–466.

Therneau, T. and Lumley, T. (2015). survival: Survival Analysis. R package version 2.38-3.