?:definition
|
-
The date and time span used to indicate the start and end of the study for a subject. NOTE(S): Derived in two parts. The start date is derived from PerformedActivity.PerformedAdministrativeActivity.PerformedStudySubjectMilestone.actualDateRange WHERE PerformedActivity DefinedActivity.nameCode = \'first intake of agent\'. The end date is derived from PerformedActivity.PerformedAdministrativeActivity.PerformedStudySubjectMilestone.actualDateRange WHERE PerformedActivity DefinedActivity.nameCode = \'last intake of agent\'. These dates are required for all randomized subjects; null for screen failures (if screen failures are submitted).
|