Local Networks. Large Impact.
[ NATIONAL NODES ]

OHDSI Europe National Nodes

The OHDSI Europe National Nodes form a distributed network of national coordination hubs that bring together local expertise to drive the adoption, implementation, and long‑term sustainability of the OMOP CDM and the wider OHDSI community across Europe. Operating within the OHDSI Europe Chapter, and in close collaboration with the EHDEN Foundation, the National Nodes connect stakeholders within their countries to address local priorities, while coordinating with the European coordinating center to support trustworthy, reusable health data.

National Nodes play a unique role: they understand local data, local stakeholders, local coding systems, and local policy environments — transforming these insights into valuable contributions that strengthen the European research ecosystem and global OHDSI community as a whole.

What National Nodes Do
1

Strengthen National Coordination and Community Building

Each National Node brings together hospitals, research institutes, government bodies, SMEs, and other stakeholders to grow national OMOP CDM adoption and analytical capacity. They provide an accessible entry point for newcomers, organize community events, and help institutions find the right expertise.
2

Support OMOP Implementation and Data Holder Onboarding

National Nodes play an essential role in helping new partners begin their OMOP journeys—supporting ETL development, improving data quality, aligning vocabularies, and enabling participation in national studies.
3

Promote Participation in International Studies

Many members involved in National Nodes actively contribute European research programmes and global OHDSI network studies, promoting collaboration, co‑leading methodology development, and driving real‑world evidence generation.
4

Expand into New Analytical and Research Domains

Many Nodes now support advanced and emerging use cases, including:

  • Oncology and disease‑specific clinical networks
  • Genomics and molecular data integration
  • PROMs and patient‑reported outcomes
  • Federated and privacy‑preserving analytics
  • Operational and clinical applications of OMOP
  • National training and education programs
5

Bridge Local Practice with European Policy

National Nodes are emerging as key connectors between local OMOP implementation and evolving European frameworks such as the EHDS. They help translate national experience into input for European initiatives while supporting the development of sustainable governance models.
National Nodes Across Europe
📄 Annual National Node Reports

The annual overviews provide a summary of each Node’s activities, achievements, challenges, and strategic priorities per year.

How National Nodes Are Organized

Each National Node is coordinated by a lead institution, supported by a co‑lead or a national core group. At least one of these lead or co-lead institutions should be a public partner, such as an academic institution, knowledge center, or hospital, to anchor the node in the public and research domain. Nodes operate through open, community‑driven principles, with lightweight governance suited to the local context. As nodes grow, many are developing more structured models to support sustainable coordination, vocabulary maintenance, and long‑term capacity building.

By linking national efforts, supporting sustainable infrastructure, and amplifying collective expertise, the OHDSI Europe National Nodes turn Europe’s diversity into a strength — ensuring that European contributions fully support the global OHDSI mission.