Datavant Research Portfolio

Datavant supports transparent research that utilizes real-world data in a privacy preserving manner. Below, we highlight research efforts that have used Datavant technology to link real-world data for the benefit of patients and the public good.

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Validity of Cardiovascular Data From Electronic Sources

Faraz S. Ahmad, Cheeling Chan, Marc B. Rosenman, Wendy S. Post, Daniel G. Fort, Philip Greenland, Kiang J. Liu, Abel N. Kho, and Norrina B. Allen

The authors sought to understand the degree of agreement of electronic data research networks as compared to data collected by standardized research approaches in a cohort study. The comparisons were made by linking data from MESA (Multi-Ethnic Study of Atherosclerosis), a community-based cohort, with EHR’s from six Chicago-area hospitals. Ultimately, nearly 70 percent had data in both systems and demonstrated mixed results. For some measurements, such as BMI, the correlations between the MESA and EHR data were quite high. For others, such as systolic blood pressure, the correlation coefficient was only 0.39.

Payment Reform Needed to Address Health Disparities of Undiagnosed Diabetic Retinopathy in the City of Chicago

Dustin D. French, Jess J. Behrens, Kathryn L. Jackson, Abel N. Kho, Theresa L. Walunas, Charlesnika T. Evans, Michael Mbagwu, Curtis E. Margo, and Paul J. Bryar

By linking together medical encounter data from a number of different Chicago hospital systems, the authors identified 150,661 patients with diabetes (out of a total of two million patients). Using that information, the study estimated the geographic distribution of undiagnosed diabetic retinopathy and found that low-income and minority areas had a disproportionate rate of undiagnosed diabetic retinopathy. Based on that, a new screening mechanism that is not currently funded by Medicare or Medicaid was suggested.

Does Spatial Access to Primary Care Affect Emergency Department Utilization for Nonemergent Conditions?

Jamie Fishman, Sara McLafferty, and William Galanter

The study attempted to understand the utilization of emergency departments for preventable conditions at the individual and neighborhood level by linking together emergency department admissions from four Chicago hospitals. By combining the data, the authors showed that individuals in medically underserved areas (MUAs) had a larger chance of emergency department use that could have been prevented.

Showing 17-20 of 22 Studies