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Past Events

Explore content from past European OHDSI symposia to understand what has engaged the community over the years.

Symposium archive
European OHDSI Symposium 2025
6th edition · 2025

Symposium 2025

Join the Network: Advancing Real-World Evidence in Europe

Date: July 5-7, 2025
Location: Old Prison, Hasselt, Belgium

Hosted in Hasselt, the 2025 symposium focused on operationalizing federated data networks, aligning with the European Health Data Space, and accelerating scalable real-world evidence across Europe.

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European OHDSI Symposium 2024
5th edition · 2024

Symposium 2024

Scaling up Reliable Evidence across Europe

Date: June 1-3, 2024
Location: SS Rotterdam, Rotterdam, Netherlands

The 2024 edition highlighted the expansion of OMOP-based data networks, real-world European use cases, and the application of OHDSI methods and tools to deliver large-scale evidence through EHDEN and DARWIN EU.

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European OHDSI Symposium 2023
4th edition · 2023

Symposium 2023

Full Steam Ahead!

Date: July 1-3, 2023
Location: SS Rotterdam, Rotterdam, Netherlands

Building on the renewed in-person momentum, the 2023 symposium focused on accelerating progress. It highlighted advancements in OHDSI methods & tools, strengthened community collaboration, and showcased mature, real-world European research using OMOP data networks.

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European OHDSI Symposium 2022
3rd edition · 2022

Symposium 2022

We’ll meet again for one journey ahead

Date: June 22-24, 2022
Location: SS Rotterdam, Rotterdam, Netherlands

The 2022 symposium marked the long-awaited return to in-person collaboration following COVID-19. It brought the community back together to reconnect, share national OMOP implementations, and re-establish momentum in methods development and real-world evidence generation.

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European OHDSI Symposium 2019
2nd edition · 2019

Symposium 2019

The Journey from Data to Evidence

Date: March 29, 2019
Location: Erasmus MC, Rotterdam, Netherlands

This second edition emphasized the path from harmonized data to reproducible, trustworthy evidence, showcasing the implementation of OMOP and OHDSI methods within an open and collaborative European research network.

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European OHDSI Symposium 2018
1st edition · 2018

Symposium 2018

Bridging Europe

Date: March 23, 2018
Location: Erasmus MC, Rotterdam, Netherlands

The inaugural European OHDSI Symposium established a strong foundation for continental collaboration by bringing together stakeholders to address the opportunities and challenges of adopting the OMOP Common Data Model in Europe.

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