Glossary

When creating an Event Definition, the user can choose to apply certain sets of letters to represent null values. Any null values selected will be considered reserved words for that specific CRF. A user entering data can not use those codes as string literals; eg - if \'NA\' is a selected null, a user cannot input \'Na\' to indicate sodium. For a complete list click here.
Person ID The person ID is a field that can be required or optional, depending on the way the study is set up. This is the unique identifier for a subject that can be used across all studies. It is a way of keeping track and reporting on where one person is within mutliple studies
User Person using the software
Site Location where the study is taking place


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