The following Qualifiers would not be used in AE: --PRESP,--OCCUR, --STAT, and--REASND.
They are the only Qualifiers from the SDTM Events Class not in the AE domain.
They are not permitted because the AE domain contains only records for adverse events that actually occurred.
See Assumption 4b above for information on how to deal with negative responses or missing responses to probing questions for pre-specified adverse events.