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Home
About OHDSI
OHDSI Overview
Global Community
Mission, Vision & Values
Titan Awards
What We Do
Data Standards
Methodological Research
Open Source Analytics
Clinical Applications
Engage With OHDSI
Community Calls
Global Community Calls
Europe Community Calls
APAC Community Calls
Workgroups
OMOP CDM
OMOP CDM GitHub
OMOP Data Sources Around the World
Events
All OHDSI Events
2026 Global Symposium
Register Me for the Global Symposium
Global Symposium Information Links
Global Symposium Collaborator Showcase
Community Forums
News & Updates
Subscribe to our Newsletter
October 2026
September 2026
August 2026
Newsletter Archive
Characterization: Does it matter how you pick your non-cases in risk factor analyses?
Authors:
Jenna M Reps, Patrick B Ryan
Brief Report
