btumors: brain tumors trial data
Description
brain tumors trial datasource
Schoenfeld D 1983 Sample-size formula for the
proportional-hazards regression model. Biometrics
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.