Happy New Year!
We are doing a retrospective study in a group of patients who received a
specific treatment. The aim is to look at if the length of the pre-treatment
period is related to the survival after the treatment, whether there is any
relationship between the duration of pre-treatment and the survival after the
treatment.
Does Cox model still apply in this case using the duration of the pre-treatment
as a predictor? Any suggestion would be much appreciated.
Thank you very much for your help.
Jenny
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