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Distance from Hospital Impacts Adverse Event Detection After Outpatient Endoscopy

Kathryn L. Jackson, Satyender Goel, Abel N. Kho, and Rajesh N. Keswani
Using the HealthLNK Data Repository, the authors sought to understand the relationship between hospital utilization and distance from the index hospital for patients with adverse events following an ambulatory endoscopy. Using mortality as the endpoint, the authors found that of the 86 patients (of the 22,898 in the study) who had early mortality, nearly half did not return to the index hospital. In total, there was a statistically significant relationship between a patient’s utilization of their index hospital and their proximity.

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An Evaluation of Recurrent Diabetic Ketoacidosis, Fragmentation of Care, and Mortality Across Chicago, Illinois

James A. Mays, Kathryn L. Jackson, Teresa A. Derby, Jess J. Behrens, Satyender Goel, Mark E. Molitch, Abel N. Kho, and Amisha Wallia
Some patients with diabetes are hospitalized repeatedly for diabetic ketoacidosis (DKA), which is typically associated with worse clinical outcomes. The authors analyzed recurrent DKA and fragmentation of care across six institutions in the Chicago area, using Datavant technology to understand when the same patient would have different DKA episodes in different hospitals. The study found that of the 3,615 patients, 21.6% had recurrent DKA; of the 780 recurrent patients, 125 were hospitalized at more than one hospital.

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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.

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