id: |
id |
study: |
1 for all patients |
rx: |
Treatment - Obs(ervation), Lev(amisole), Lev(amisole)+5-FU |
sex: |
1=male |
age: |
in years |
obstruct: |
obstruction of colon by tumour |
perfor: |
perforation of colon |
adhere: |
adherence to nearby organs |
nodes: |
number of lymph nodes with detectable cancer |
time: |
days until event or censoring |
status: |
censoring status |
differ: |
differentiation of tumour (1=well, 2=moderate, 3=poor) |
extent: |
Extent of local spread (1=submucosa, 2=muscle, 3=serosa,
4=contiguous structures) |
surg: |
time from surgery to registration (0=short, 1=long) |
node4: |
more than 4 positive lymph nodes |
etype: |
event type: 1=recurrence,2=death |