Risk-Based Monitoring (RBM) supports site-level variables in the supplemental data set. These are identified by having USUBJID missing. Study Site Identifier (
SITEID) is now a required variable for this format. Because dates can be provided, site-level variables should be summarized in time trend analyses. Within the same analysis, subject and site-level variables cannot share the same values for
VARIABLE and
RBDECOD. Refer to
Risk-Based Monitoring - External Standard - Version 2 for more information about supplemental data sets used for RBM.