Problem Description: PHREG procedure

[raffa1966]

Problem Description:   

data rischio; set raffy; proc phreg data=rischio COVS(aggregate) COVM namelen=22;

class centrocut(ref='0') cd4cut(ref='A') emocut(ref='A');

model follKM*statusKM(0)= centrocut emocut cd4cut cd4cut*emocut/risklimits;

id centrocut;

hazardratio 'cd4cut' cd4cut / diff=ref;

hazardratio 'emocut' emocut / diff=ref; run;

I can not see the main effects of cd4cut and emocut. I get results only for the interactive effect.

How can I get the HR for both the main effects and the interactive effect?

Thank you,

R  
 

[ballardw]

From the documentation:

RISKLIMITS<=keyword> RL<=keyword>

produces confidence intervals for hazard ratios of main effects not involved in interactions or nestings

[raffa1966]

Thank you.

I know that.

For these reason I'm using HazardRatio.

However with HazardRatio I get the HR only for interacation effect and not for main effects .

can you help me?

R   

[raffa1966]

Hi Ballardw,

can you help me?