STUDYID, USUBJID : In-between spaces in Value

g Gopal

on May 17, 2023

Hi Team,

Can we have a space in-between in STUDYID / USUBJID values? We don't have any specific restriction for providing with respect to spacing for STUDYID, USUBJID variables in IG.

Example: STUDYID = ABCSTDY-A 101 ; USUBJID = ABCSTDY-A 101-001-101

Forums: SDTM

Sergiy

on May 19, 2023

P21

Hi Gopal, I am not aware…

Hi Gopal,

I am not aware of any specific formal requirements about the usage of space characters in ID.

However, you would rather not follow such a practice to avoid potential problems in your data processing.

For example, is a trailing space character in your STUDYID variable above represent a part of the real value or not? ( "ABCSTDY-A 101 " vs. "ABCSTDY-A 101").

Also, invisible characters are quite tricky for manual diagnostics.

Kind Regards,
Sergiy