Is it possible to use a continuous variable (x) instead of time in the proc lifetest procedure to model the difference of event rates between treatment arms with increasing variable x...and then use the log-rank p-value? ... View more

Hi,   So I am getting a weird CIF graph from using the Fine and Gray method. The lines circle back and connect. I have attached the picture. If anyone could let me know what they think may be the problem that would be greatly appreciated. Code:   ods graphics on; proc phreg data=analysis plots(overlay=stratum)=cif; model aval*cnsr(2)=trx/ eventcode = 0; hazardratio 'Pairwise' trx/diff=pairwise; baseline covariates = risk out=_null_ cif = _all_/rowid =trx; where fseofl="Y"; run; ods graphics off; ... View more