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 Hota, Shannon A. Sims, Bradley A. Malin, Dustin D. French, Theresa Walunas, David O. Meltzer, Erin O. Kaleba, Roderick C. Jones, William L. Galanter

Abstract: Objective To design and implement a tool that creates a secure, privacy preserving linkage of electronic health record (EHR) data across multiple sites in a large metropolitan area in the United States (Chicago, IL), for use in clinical research.