Common Longitudinal ICU data Format (CLIF)
Advancing Critical Care Through Federated Research
An open source data standard for longitudinal ICU data that enables high quality privacy-preserving multicenter research
MIMIC-IV in CLIF Format — Now on PhysioNet
MIMIC-IV is now available in CLIF format on PhysioNet — enabling researchers worldwide to develop and test analysis code using the CLIF standard without requiring institutional EHR access.
Zewei Liao et al.
Access on PhysioNet
Built for Critical Care Research
We've built a geographically diverse network of clinician-scientists, data scientists, and leading academic medical centers across North America. Together, we leverage deep expertise in EHR-based clinical outcomes research and AI applications to advance critical care through collaborative, data-driven research.
Read more about CLIFStandardized Format
Purpose-built for longitudinal ICU data, eliminating months of ad-hoc harmonization.
Privacy-Preserving
Federated analytics — only aggregate results are shared, no patient data leaves the institution.
Rapid Multicenter Research
Write once, run across 12+ sites. Hypothesis to multicenter results in weeks, not years.
Open Source
Apache License 2.0 — all tools, ETL pipelines, and specifications are openly available on GitHub.
17 institutions · 62 hospitals · 12 active sites