Results of a retrospective study, conducted in 1973,
on 299 women who been surgically treated for ovarian cancer 10 years before.
Format
A data frame with 299 observations on the following 4 variables.
stage
factor indicating the stage of the cancer at the time of operation (early, advanced)
operation
factor indicating the amount of tissue removed during surgery (radical,limited)
survival
whether or not the subject was still alive after ten years (yes,no)
xray
factor indicating whether or not the subject also received x-ray treatments (yes,no)
Source
Rebuilt from a contingency table in E. B. Andersen (1991),
The Statistical Analysis of Categorical Data. 2nd edition. Springer-Verlag, Berlin. Table found in
package vcd.