Yes. :-)

 Best regards  --  Gerrit

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


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