LAUREN COSTA

Abstract The widespread adoption of electronic health records has created new opportunities for translational clinical research, yet this promise remains constrained by fragmented data across privacy-siloed institutions and substantial heterogeneity in local coding practices. While privacy-preserving collaborative learning allows institutions to work together without sharing patient-level data, it does not address inconsistencies in how clinical concepts are represented across sites.

1Million Veteran Program (MVP) Coordinating Center, Veterans Affairs Healthcare System, 2 Avenue de Lafayette, Boston, 02111, MA, USA. 2Division of Aging, Brigham and Women’s Hospital and Harvard Medical School, 75 Francis St, Boston, 02115, MA, USA.