proc phreg data = dm_mty nosummary; class sex (ref='F') ageg(ref='<30') / param = ref; model ft*dead(0) = sex ageg xcvd1; if cvd1=1 & surv_cvd1 < ft then xcvd1=1; else xcvd1=0; run; I ran the same program by strata case_phin, without adjusting sex and age. it worked. but I select a subgroup data, no strata, but adjusting sex and age, it just run and run ... no stop. I need the results for tomorrow's presentation. now I am panic.... Thank you.
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