COVID-19 News

VA Big Data Science: A Model for Improved National Pandemic Response Present and Future

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Background: The US Department of Veterans Affairs (VA) enterprise approach to research (VA Research) has built a data-sharing framework available to all research teams within VA. Combined with robust analytic systems and tools available for investigators, VA Research has produced actionable results during the COVID-19 pandemic. Big data science techniques applied to VA’s health care data demonstrate that medical research can be performed quickly and judiciously during nationwide health care emergencies.

Observations: We envision a common framework of data collection, management, and surveillance implemented in partnership with other health care agencies that would capture even broader, actionable, and timely observational data on populations, while providing opportunities for enhanced collaborative research across agencies. This model should be continued and expanded through the current COVID-19 and future pandemics.

Conclusions: Extending the achievements of VA Research in the COVID-19 pandemic to date, we advocate national goals of open science by working toward a synergistic national framework of anonymized, synchronized, shared health data that would provide researchers with potent tools to combat future public health crises.


 

References

The COVID-19 pandemic emphasized the need for rapid response research in health care. The robust enterprise approach used by the US Department of Veterans Affairs (VA), termed VA Research, is meeting these needs by using existing outstanding data resources and interdisciplinary collaborations.1 In the first 7 months of 2021 alone, while many US health care systems struggled with limited data, VA Research published more than 300 unique and instrumental research papers addressing urgent questions about transmission, vaccination, therapeutics, and health impacts of COVID-19 on its high-risk population.1 The ability to leverage the VA electronic health record (EHR) and Corporate Data Warehouse (CDW)—a fully established data system bringing together test results, prescriptions, and complete patient health records, readily accessible and updated daily—was substantial.

With more than 9 million veterans enrolled in care at 171 medical centers and 1113 outpatient facilities across the US and its territories, the CDW provides an unprecedented opportunity to examine outcomes in real time. This allowed research groups such as the VA St Louis Health Care System Research and Education Service to build a cohort of 181,280 veterans with diabetes and positive COVID-19 test results within a 6-month period in 2021 to study the incidence of new diagnoses of diabetes after COVID-19 infection.2 Similarly, the Clinical Epidemiology Program (CEP) at VA White River Junction Health Care System built a cohort of 1,363,180 veterans who received at least 1 COVID-19 vaccine by March 7, 2021, to analyze coverage and effectiveness of those vaccines.3 This time-sensitive research was possible because the VA had the data and tools in place. Moreover, the the CEP quickly built an infrastructure to make its cohort and programming codes available to researchers in and outside the VA, resulting in additional significant research.4

The innovation and speed of COVID-19 vaccine development and distribution in the US were unprecedented. The rapid discovery and implementation of multiple preventives and therapeutics for COVID-19 could not have been possible without shared information within a competitive industry. VA studies added significantly to understanding the clinical performance of the messenger RNA (mRNA) COVID-19 vaccines, antivirals, and monoclonal treatments in a real-world setting. For example, a vaccine coverage study by VA Research illustrated how successful vaccination for COVID-19 at the VA has been in protecting a diverse community of patients from hospitalization and death, particularly the highly comorbid, racial and ethnic minorities, and other high-risk populations.3 The study demonstrated the power of the VA system to generate robust and compelling clinical endpoint effectiveness data across a broad range of high-risk groups.

This success is promising. However, the COVID-19 pandemic is not over, and the next could prove even more challenging. For example, through a recent partnership with the US Department of Defense (DoD), the VA was able to rapidly analyze the effectiveness of previous smallpox vaccination efforts in the military for preventing mpox infections.5 We should take this opportunity to think creatively about ways to improve our existing infrastructure based on what we have learned.

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