nwtco {survival} | R Documentation |
Missing data/masurement error example. Tumor histology predicts survival, but prediction is stronger with central lab histology than with the local institution determination.
nwtco
A data frame with 4028 observations on the following 9 variables.
seqno
instit
histol
stage
study
rel
edrel
age
in.subcohort
http://faculty.washington.edu/norm/software.html
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.
with(nwtco, table(instit,histol)) anova(coxph(Surv(edrel,rel)~histol+instit,data=nwtco)) anova(coxph(Surv(edrel,rel)~instit+histol,data=nwtco))