Programming the statistical procedures from SAS

Cox regression with time-dependent covariates with a matched cohort

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Cox regression with time-dependent covariates with a matched cohort

Hi, I  am rather new at doing Coxanalyses with time-dependent covariates in SAS and I have now a cohort that is matched on sex and age. I therefore need to do a conditional cox regression. Is i possible to do a tíme-dependent analysis  with ties=discrete ás sas support suggests when doing a conditional regression, (I have ties=eftron when I do time dependent analysis) or do I need to do it in another way?

 

 

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