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RE: [Developers] Study Subject ID & Person ID


Study Subject ID (SSID) is a unique identifier for a subject within a Study. SSID is how subjects are identified in the database and is a required field. When creating a Study, there are several options for how an SSID is to be generated: manually entered or auto generated and editable or auto generated and non-editable.

Person ID is an identifier is a global identifier and is used to track a patient across multiple studies. This means that if the same subject is going to be enrolled in more than one subject, they can have a person ID to track their subject data across studies. The person ID would be used in addition to SSID. When creating a study, this option can be turned on or off. Person ID does not need to be collected.

Best Regards,


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Alicia Goodwin
Akaza Research
400 One Kendall Square
Cambridge, MA 02139
tel: 617.621.8585 ext. 24
[email protected]

-----Original Message-----
Sent: Monday, November 24, 2008 12:09 PM
To: [email protected]
Cc: [email protected]
Subject: [Developers] Study Subject ID & Person ID


I think, it's a trivial question.

What's the different between Study Subject ID & Person ID, and how can we use
What are the limits for each?

Can we have once kind of study Subject ID for all the study?

Thanks for your reply,


PS: Thanks Paul for you're last mail about the hidden field.
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