topic Plot hazard ratio for a continous predictor in SAS Programming

Plot hazard ratio for a continous predictor

mari776 — Wed, 19 Jun 2024 09:43:48 GMT

I defined a Cox model that evaluates the relationship between the number of diseases (x) and hospitalisations for infectious diseases (y). I would like to represent in a plot the hazard ratios, with their 95% CIs, for different values of the number of diseases (0, 1, 2, 3, ...) . Is there a way to do this?
Thank you in advance.

Re: Plot hazard ratio for a continous predictor

Rick_SAS — Wed, 19 Jun 2024 13:16:46 GMT

I think so. Can you show the code that you are running to fit the Cox model?

Re: Plot hazard ratio for a continous predictor

mari776 — Thu, 20 Jun 2024 05:36:24 GMT

Hi Rick,

this is the code I considered:

proc phreg data=prova;

class id frailty (param=ref ref='0') ;

model time*ric(0)= sex age frailty n_diseases /ties=breslow rl ;

random id/dist=lognormal;

run; quit;

The continuous predictor I'm considering is n_diseases (number of diseases).