Hello,
I am trying to fit a Cox model on a dataset with both fixed and time-varying
covariates (tvc). However, Stata will not fit a model with tvc only. I have
received two different error messages when trying to do this:
stcox, tvc(var)
last estimates not found
(r301)
or
stcox, tvc(var)
option tvc( ) not allowed
(r198)
It works fine when I also include a fixed variable in the model -
unfortunately none of my fixed variables are significant but the tvc are. I
have found a similar query in the Statalist archives but unfortunately no
answer! Please can somebody help.
Thank you,
Kristien Verheyen
PhD student
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