p values for hazard ratios

msarin — Mon, 27 Dec 2021 21:08:11 GMT

Using a Cox multivariate proportional hazard model in SAS, how does one get the p values for the revision risk (not the p values for the coefficients)? Below are fake data:

Variable Revision Risk p value

Age group in years

35-49 vs. 18-34 0.637 (0.200-2.026)

50-59 vs. 18-34 1.229 (0.883-1.711)

60-69 vs. 18-34 1.076 (0.794-1.458)

>=70 vs. 18-34 1.444 (1.079-1.933)

Re: p values for hazard ratios

msarin — Thu, 30 Dec 2021 16:35:34 GMT

Actually, I ended up doing this:

* Calculate p value for hazard ratio;
%macro hazard_p;
est=log(hazardratio);
l=log(HRLowerCL);
u=log(HRUpperCL);
SE=(u-l)/(2*1.96);
z=abs(est/SE);
p=exp(-.717*z-.416*z**2);
drop est--z;
%mend hazard_p;

topic p values for hazard ratios in Statistical Procedures

p values for hazard ratios

Re: p values for hazard ratios