Hi All. I am conducting a survival analysis on a typical clinical dataset in sas studio: Treatment/Placebo; Event/Censored. I am going to use cox model to get a hazard ratio and I know how to do that with PROC PHREG. I am wondering if thats the only way to do it. If it is, how do people validate the value? (From my opinion, validation means different codes lead to same result)
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