MarkVCID2 Data (2021-2027)
The Consortium is currently completing follow-up visits.
To learn more about MarkVCID2, see Consortium Overview or MarkVCID2 Protocols.
Available MarkVCID2 data*:
• Baseline v1.3 (as of 11/17/2025)
• 12-month v1.0 (as of 11/17/2025)
*All visit data undergo routine data cleaning throughout the study period. Updates will be reflected in subsequent versioned releases.
Interested in requesting MarkVCID2 data?
1. Query the system using the 'Filter Criteria' (left) to ensure the MarkVCID2 data repository has the data required by your proposal
2. Fill out a
Project Proposal Form in detail for Consortium review**
(link auto-downloads to computer)
Important:
Investigators are responsible for the accuracy and authenticity of their proposal submission, including content developed with the assistance of generative AI tools. AI tools may create risks for research misconduct (including fabrication, falsification, plagiarism in proposing or performing research, or reporting results).
Proposals related to the specified MarkVCID2 biomarkers may be deferred until the consortium completes its primary analyses.
3. Navigate to
MarkVCID Data Elements Form to select the clinical & cognitive data, and/or imaging data required by your proposal. Upload a copy of the Project Proposal Form into this online Data Elements Form in Word document format only.