survival (version 2.21)

nwtco: Data from the National Wilm's Tumor Study

Description

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

Usage

data(nwtco)

source

http://faculty.washington.edu/norm/software.html

References

N.E. Breslow and N. Chatterjee, "Design and analysis of two-phase studies with binary outcome applied to Wilms tumour prognosis" Applied Statistics 48:457-68, 1999

Examples

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