Design and Implementation of a Privacy Preserving Electronic Health Record Linkage Tool in Chicago
Abel N. Kho, John P. Cashy, Kathryn L. Jackson, Adam R. Pah, Satyender Goel, Jörn Boehnke, John Eric Humphries, Scott Duke Kominers, Bala N. Hota, Shannon A. Sims, Bradley A. Malin, Dustin D. French, Theresa L. Walunas, David O. Meltzer, Erin O. Kaleba, Roderick C. Jones, and William L. Galanter
The study discusses the design and implementation of a tool that created a secure, privacy-preserving linkage of electronic health record (EHR) data across multiple sites in Chicago. There are a number of uses for this technology, including in clinical research and understanding the fragmentation of care. The software documented in the study was able to link data across the six institutions, resulting in five million unique patient records while de-duplicating seven million records. Today, the software is part of the Datavant offering.