Do I really need to care if one of my covariate fails to meet PH assumption in cox ph regression?

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David Eugene Booth

You have said nothing about your data,your hypotheses, etc. Thus it's difficult to answer your question. I'm attaching a similar paper that worked very well for us. Perhaps you could look at it and indicate more specific questions.. Best wishes, David Booth

Bruce Weaver

Here are some notes you may find useful:

http://spia.uga.edu/faculty_pages/rbakker/pols8501/OxfordThreeNotes.pdf

The output was generated using Stata, in case you're wondering.

EDIT

Here is a page with a link to those same notes and more.

https://spia.uga.edu/faculty_pages/rbakker/pols8501/POLS%208501.htm
https://spia.uga.edu/faculty_pages/rbakker/