topic Event Time under Piecewise Model in Statistical Procedures https://communities.sas.com/t5/Statistical-Procedures/Event-Time-under-Piecewise-Model/m-p/977526#M49039 <P>Hi,&nbsp;</P><P>&nbsp;</P><P>I need to derive the required number of events and time to the required number of events for study planning. I want it to be based on piecewise exponential model based on EFS rates for two groups. Can you please write SAS code to do that?</P> Tue, 21 Oct 2025 13:43:43 GMT sensass5224950 2025-10-21T13:43:43Z Event Time under Piecewise Model https://communities.sas.com/t5/Statistical-Procedures/Event-Time-under-Piecewise-Model/m-p/977526#M49039 <P>Hi,&nbsp;</P><P>&nbsp;</P><P>I need to derive the required number of events and time to the required number of events for study planning. I want it to be based on piecewise exponential model based on EFS rates for two groups. Can you please write SAS code to do that?</P> Tue, 21 Oct 2025 13:43:43 GMT https://communities.sas.com/t5/Statistical-Procedures/Event-Time-under-Piecewise-Model/m-p/977526#M49039 sensass5224950 2025-10-21T13:43:43Z