CDISC support in SAS

[sharathbairoju]

can any one tell me the exact difference between RFSTDTC AND RFXSTDTC, RFENDTC AND RFXENDTC?HOW TO DERIVE THEM?

[PaigeMiller]

My searching with Google fails to find the text RFSTDTC at documentation.sas.com.

Please explain further what you are asking about.

[sharathbairoju]

I just want to know the difference and how to derive them from the raw data.

[PaigeMiller]

If Google is correct, there is no such thing as RFSTDTC in SAS.

Explain further what it is and what you are asking about.

[sharathbairoju]

please search as  RFSTDTC,RFXSTDTC,RFENDTC AND RFXENDTC  are variables of DM domain of CDISC SDTM.

[Aayushi_17]

RFXSTDTC & RFXENDTC are the new variable added in SDTM IGv3.2. Earlier
RFSTDTC or RFENDTC are used for the start date/time of exposure and end
date/time of exposure, but now there are specific variable introduced
RFXSTDTC and RFXENDTC for the same

[Reeza]

@sharathbairoju The information you're looking for is CDISC related, not SAS specific, so although you may be lucky enough to find someone who knows the answer, this isn't likely the best place. I assume that CDISC and the FDA put out fairly detailed documentation about the requirements though. 

I'm assuming you'll find that information here, but I can't be certain. 

https://www.cdisc.org/FDA-Final-Binding-Guidance-on-Standards

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@sharathbairoju wrote:

can any one tell me the exact difference between RFSTDTC AND RFXSTDTC, RFENDTC AND RFXENDTC?HOW TO DERIVE THEM?

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