[R] cox.zph

Gerrit Eichner gerr|t@e|chner @end|ng |rom m@th@un|-g|e@@en@de
Wed Mar 31 21:38:46 CEST 2021


Yes. :-)

  Best regards  --  Gerrit

---------------------------------------------------------------------
Dr. Gerrit Eichner                   Mathematical Institute, Room 212
gerrit.eichner using math.uni-giessen.de   Justus-Liebig-University Giessen
Tel: +49-(0)641-99-32104          Arndtstr. 2, 35392 Giessen, Germany
http://www.uni-giessen.de/eichner
---------------------------------------------------------------------

Am 31.03.2021 um 21:29 schrieb Sorkin, John:
> Colleagues,
> 
> I would like to make certain that my understanding of the tabular output produced by cox.zph is correct.
> 
> Am I correct that the NULL hypothesis being tested is that the hazard is proportional in time?  Therefor a non-significant result indicates that we don't have evidence that the proportional hazards assumption is incorrect and we can assume that the hazard is proportional. A significant result indicates that we have evidence that the proportional hazards assumption is violated.
> 
> Thank you,
> John
> 
> John David Sorkin M.D., Ph.D.
> Professor of Medicine
> Chief, Biostatistics and Informatics
> University of Maryland School of Medicine Division of Gerontology and Geriatric Medicine
> Baltimore VA Medical Center
> 10 North Greene Street
> GRECC (BT/18/GR)
> Baltimore, MD 21201-1524
> (Phone) 410-605-7119
> (Fax) 410-605-7913 (Please call phone number above prior to faxing)
> 
> 
> ______________________________________________
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
>



More information about the R-help mailing list