btumors: Brain tumors trial data
Description
Brain tumors trial dataformat
A data.frame with $6$ rows and $4$ columns.source
Schoenfeld D. Sample-size formula for the proportional-hazards regression model.
Biometrics 1983 June; 39:499-503. http://www.jstor.org/stable/2531021{JSTOR}Details
Data from a trial of primary brain tumors
performed by the Radiation Therapy Oncology Group in 1978.
272 patients in total were enrolled in a trial comparing
chemotherapy to chemotherapy + radiotherapy.
Prognostic factors are illustrated.
Columns are:
[object Object],[object Object],[object Object],[object Object]