leuk
From MASS v7.3-53
by Brian Ripley
Survival Times and White Blood Counts for Leukaemia Patients
A data frame of data from 33 leukaemia patients.
- Keywords
- datasets
Usage
leuk
Details
Survival times are given for 33 patients who died from acute myelogenous leukaemia. Also measured was the patient's white blood cell count at the time of diagnosis. The patients were also factored into 2 groups according to the presence or absence of a morphologic characteristic of white blood cells. Patients termed AG positive were identified by the presence of Auer rods and/or significant granulation of the leukaemic cells in the bone marrow at the time of diagnosis.
Format
A data frame with columns:
wbc
white blood count.
ag
a test result,
"present"
or"absent"
.time
survival time in weeks.
References
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.
Examples
# NOT RUN {
library(survival)
plot(survfit(Surv(time) ~ ag, data = leuk), lty = 2:3, col = 2:3)
# now Cox models
leuk.cox <- coxph(Surv(time) ~ ag + log(wbc), leuk)
summary(leuk.cox)
# }
Community examples
Looks like there are no examples yet.