Re: [R] Cumulative dose in survival models

2011-05-10 Thread peter dalgaard
On May 10, 2011, at 10:52 , kl...@kaae-consult.dk wrote: > > Dear List, > > I want to fit a CPH survival model with a time-dependent cumulative exposure > variable. More specifically, I have exposure measurements for all cohort > members at discrete times (yearly measurements) during follow-

[R] Cumulative dose in survival models

2011-05-10 Thread klaus
Dear List,   I want to fit a CPH survival model with a time-dependent cumulative exposure variable. More specifically, I have exposure measurements for all cohort members at discrete times (yearly measurements) during follow-up.   I suppose that when estimating the model parameters the most corr