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I'm trying to estimate a Cox proportional hazard model with time-varying
covariates using coxph. The parameter estimates are fine but there is
something wrong with the survival curves I get with survfit (results are
not plausible).
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This
Hello,
I'm trying to estimate a Cox proportional hazard model with time-varying
covariates using coxph. The parameter estimates are fine but there is something
wrong with the survival curves I get with survfit (results are not plausible).
Let me explain why I think something's wrong.
To make
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