R Dataset / Package survival / nwtco

Submitted by pmagunia on March 9, 2018 - 1:06 PM
Dataset License
GNU General Public License v2.0
Attachment Size
dataset-71644.csv 111.02 KB
Documentation

Data from the National Wilm's Tumor Study

Description

Measurement error example. Tumor histology predicts survival, but prediction is stronger with central lab histology than with the local institution determination.

Usage

nwtco

Format

A data frame with 4028 observations on the following 9 variables.

seqno

id number

instit

Histology from local institution

histol

Histology from central lab

stage

Disease stage

study

study

rel

indicator for relapse

edrel

time to relapse

age

age in months

in.subcohort

Included in the subcohort for the example in the paper

References

NE Breslow and N Chatterjee (1999), Design and analysis of two-phase studies with binary outcome applied to Wilms tumour prognosis. Applied Statistics 48, 457–68.

Examples

with(nwtco, table(instit,histol))
anova(coxph(Surv(edrel,rel)~histol+instit,data=nwtco))
anova(coxph(Surv(edrel,rel)~instit+histol,data=nwtco))
--

Dataset imported from https://www.r-project.org.

Documentation License
GNU General Public License v2.0

From Around the Site...

Title Authored on Content type
R Dataset / Package MASS / leuk March 9, 2018 - 1:06 PM Dataset
R Dataset / Package COUNT / lbw March 9, 2018 - 1:06 PM Dataset
R Dataset / Package HistData / Yeast March 9, 2018 - 1:06 PM Dataset
R Dataset / Package wooldridge / wage1 March 9, 2018 - 1:06 PM Dataset
R Dataset / Package car / Anscombe March 9, 2018 - 1:06 PM Dataset