Answer / sandeep

Did you mean primary efficacy variable?

Study i am involved in the project is Diabetes

The primary efficacy variable was HbA1c (change from
baseline at end of study)

Answer / sai

Try to answer these questions since you may face any of
these in clinical SAS domain round.

for further info feel free to write me at
sasclinicals2010@gmail.com

Answer / shuai

did you mean the primary key variable in a sas or sql table?

primary key variable is unique, and it is very helpful when
you need to find some information from other related tables
that also contain the same variable.

for example: claim_id could be a primary key variable in
clinical study

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