Data quality · Cohort design · Real-world evidence
About the training
In the OHDSI community, we've come a long way together: standardizing health data across hundreds of institutions, building shared tools, and growing a community that spans the globe. The next level is realizing the full value of your CDM: ensuring high-quality, analysis-ready data, robust processes for maintenance and updates, and reliable evidence generation within your organization and in multi-center studies.
This 3-day expert training brings together max. 30 OMOP implementers for an intensive, hands-on programme in the heart of Rotterdam. You'll work directly with the tools the community has built (including the Data Quality Dashboard, ATLAS, and CohortDiagnostics) and leave with concrete improvement pointers and a personal 30-day action plan.
The training is delivered by the team of the Department of Medical Informatics, Erasmus MC, bringing more than a decade of experience in operationalising OMOP CDM in Europe through EHDEN, DARWIN EU®, and the OHDSI Europe Coordination Center.
Before you arrive
This is an expert-level course. Participants are expected to have working experience with OMOP CDM before attending. If you feel like you need to refresh some of your knowledge, the Book of OHDSI and the EHDEN Academy can be good resources.
Complete the CDM, ETL, and DQD courses on academy.ehden.eu before arriving. These are free and take approximately 4–6 hours total.
You should have experience working with an OMOP CDM instance: either your own institution's or a shared one. Basic SQL literacy and familiarity with ETL concepts are required.
Bring a laptop. Access to ATLAS will be provided for exercises. If you plan to use R (Day 2), the TreatmentPatterns package should be installed in advance (instructions will be sent with your confirmation email).
BYOO participants must have run DQD, CdmOnboarding, and Achilles on their data before Day 1 and have results available. A data-readiness check will be scheduled approximately 2 weeks before the course.
Up to 5 participants may apply for a BYOO slot, giving them access to live faculty feedback on their own institutional data throughout the course. BYOO selection is based on data readiness and organisational context and is confirmed at registration.
Who delivers this
The training is delivered by a team with more than a decade of hands-on experience operationalising OMOP CDM across Europe. We are not just teaching the tools, but building and running them at scale.
30 seats. Hands-on. Rotterdam. 7–9 September 2026.
Interested in a future cohort, BYOO eligibility, or group rates? Email us at i.vermeulen@erasmusmc.nl