On Jul 25, 2013, at 2:11 PM, John Sorkin <jsor...@grecc.umaryland.edu> wrote:
> Colleagues, > Is there any R package that will allow one to perform a repeated measures Cox > Proportional Hazards regression? I don't think coxph is set up to handle this > type of problem, but I would be happy to know that I am not correct. > I am doing a study of time to hip joint replacement. As each person has two > hips, a given person can appear in the dataset twice, once for the left hip > and once for the right hip, and I need to account for the correlation of data > from a single individual. > Thank you, > John John, See Terry's 'coxme' package: http://cran.r-project.org/web/packages/coxme/index.html You also might find the following of interest: http://bjo.bmj.com/content/71/9/645.full.pdf http://www.ncbi.nlm.nih.gov/pubmed/22226885 http://www.ncbi.nlm.nih.gov/pubmed/22078901 Regards, Marc Schwartz ______________________________________________ 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.