Hi, I am wondering what should be considered when dates used to be compared to SE SESTDTC and SEENDTC are either a long time prior study or after end of study date. Those period are not in SE domain, so for those record should I assign EPOCH value to "SCREENING" for date before study screening date and to the EPOCH value for last period scheduled for the study ? Thanks
Hi Harish, yes, EPOCH derivation remains constant in majority of the cases. For findings domains, we use collection date as the base date and in events/interventions domains we use start date as the base date for deriving epoch.
