https://communities.sas.com/t5/Statistical-Procedures/time-stratified-cox-regression/m-p/703962#M34038 <P>I'm not an expert in survival analysis but, from the doc, the BASELINE statement with the TIMELIST option might be what you need.</P> <P>&nbsp;</P> Sun, 06 Dec 2020 21:03:51 GMT PGStats 2020-12-06T21:03:51Z https://communities.sas.com/t5/Statistical-Procedures/time-stratified-cox-regression/m-p/703922#M34034 <P>I am running a proc phreg statement modeling outcome with time with only one variable in the model. Since the time variable span from 0-24 months, would it be possible to adjust the statement below to get the HR at different time points e.g. (6 m, or 12 m)?</P><PRE><CODE class=" language-sas">proc phreg data=; class drug (ref='1') / param=ref; model period*outcome(0)= drug / risklimits; run;</CODE></PRE> Sun, 06 Dec 2020 12:26:28 GMT https://communities.sas.com/t5/Statistical-Procedures/time-stratified-cox-regression/m-p/703922#M34034 lillymaginta1 2020-12-06T12:26:28Z https://communities.sas.com/t5/Statistical-Procedures/time-stratified-cox-regression/m-p/703962#M34038 <P>I'm not an expert in survival analysis but, from the doc, the BASELINE statement with the TIMELIST option might be what you need.</P> <P>&nbsp;</P> Sun, 06 Dec 2020 21:03:51 GMT https://communities.sas.com/t5/Statistical-Procedures/time-stratified-cox-regression/m-p/703962#M34038 PGStats 2020-12-06T21:03:51Z