Information on patients treated for a cancer disease located in the stomach area. The data set includes:
Time from operation until death in days.
Event indicator (0 = censored, 1 = death).
The subject's age.
The subject's sex (male/female).
Charlson comorbidity score, 1-6.
Has subject received transfusions (no/yes).
Did major complications occur during operation (no/yes).
Did the tumor develop metastases? (no/yes).
Was the operation accompanied by a major resection (no/yes).
tumorAn object of class tbl_df (inherits from tbl, data.frame) with 776 rows and 9 columns.