Displaying 1 result from an estimated 1 matches for "smoke25".
2011 Mar 07
0
survest() for cph() in Design package
...S code to this, so I am
trying to replicate the SAS results.
The data attached. Basically, the variables are:
rstime: risk set age
rsentry: fake entry time, just before rstime
setno: risk set identifier
cc: lung cancer death (0/1)
cr500: independent variable 1 (0/1), cumulative radon > 500WLM
smoke25: independent variable 2 (0/1), 1/2+ pack/dat at age 25
logw: weight to be used as an offset in the model
rstime2: indicator variable to indicate whether age is below 50, 50-69 or >=70,
used as strata in the model
The SAS code is (if this helps to address my question/problem)
proc phreg data=u...