Hi,
I have derived a model for predicting 10 survival, based on certain
risk factors. The follow-up time in my dataset is variable, so I have
used Cox
methods in the derivation.
But to test it I have been using Hosmer Lemeshow (the downloadable hl
command in STATA). My problem is that I can shorten the follow-up on
the longer observations to 10 years in order to run this, but there is
nothing I can do with the shorter follow-ups. So, the test shows that
the risk is over-estimated, because some of those who are included in
the observed 10 year risk only have 5 years of follow-up.
Does anyone know if there is a goodness of fit test that can use
variable follow-up in STATA (similar to the post estimation command
for Harell's C instead of AUROC)?
Many thanks for your help,
MTC
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