Thanks. The first two links are helpful. For the log-reg, I was initially thinking that we need to re-arrange the dataset to make ID-Year observations (I think some books are suggesting this), and then run regression on "hazard rate". I did not know whether we should write code to calculate the hazard rate by ourselves. However, the paper solved my puzzle. Thanks!
Tianxu wrote: > > Hello folks, > > > > I am wondering how to do survival analysis with time-related IVs in R. For > example, > > > >> > If we have time-related variables, such as the Overall Condition of > 1990, 1991 etc., how can we include these variables in coxph model? > >> > > >> > If we can not use coxph model, do we need to rearrange the dataset to > make it something like: > >> > ID time age drug censor Year Overall Condition > >> > 1 1 5 46 1 0 1990 XXX > >> > 2 1 5 35 1 0 1991 XXX1 > >> > 3 1 6 35 1 1 1992 XXX2 > >> > 4 2 5 46 1 0 1990 XXX > >> > 5 2 6 35 1 1 1991 XXX1 > >> > 6 3 6 35 1 1 1990 XXX2 > > > > And then run logistic regression using "censor" as the DV? > > > > > > > > Tianxu Chen > > 101 N. 33rd Street > Academic Building, 3FL > Drexel University > Philadelphia, PA 19104 > Phone: 1-215-895-2884(O) > Email: [EMAIL PROTECTED] > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > > -- View this message in context: http://www.nabble.com/How-to-do-survival-analysis-with-time-related-IVs--tp16801272p16812343.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
