Measuring and Talking to Patients About the Accuracy of Data Used in Patient-Centered Outcomes Research [Methods Study], North Carolina and Arkansas, 2013-2018

For research studies, researchers can use data about patients' health and treatments from electronic health records, or EHRs. They may also collect self-reported data directly from patients. But a patient's EHR and self-reported data may not always agree. For example, differences may exist between the medicines that patients report taking and the medicines listed in their EHRs. Researchers don't know which of these two data sources is the most accurate.
In this project, the research team looked at EHR and self-reported data to learn which data source was more accurate.