Participant ID Identifier

What is a Participant ID?

A Participant ID is a unique identifier assigned to each individual enrolled in CMMI studies. It allows researchers to link data from different sources while maintaining participant privacy.

Relationship to CMMI ID

In the CMMI-DCC system:
- CMMI ID is the primary identifier used across all studies
- Participant ID may refer to study-specific identifiers
- Both terms are often used interchangeably

Usage

• Data Linking: Connect CBC, HLQ, omics data for the same individual
• Privacy Protection: De-identified identifier protects personal information
• Search: Find all data for a specific participant

Related Terms

• CMMI ID: Primary participant identifier
• Study ID: Study-specific identifier
• Sample ID: Identifier for biological samples