CESAR has created interactive dashboards using data from de-identified electronic health records (EHRs) obtained from hospitals participating in the Emergency Department Drug Surveillance (EDDS) system. EDDS gathers this EHR information from participating hospitals in order to monitor the trends in the drugs detected in patients presenting to their Emergency Departments (EDs). EHRs submitted to EDDS contain de-identified demographic and clinical information such as chief complaints, diagnoses, and urine drug test results. At the end of each calendar quarter, participating hospitals submit EHRs to CESAR. Results are updated, entered into data dashboards, and posted on this site.

CESAR received initial funding (2017-2020) through the University of Maryland’s MPowering the State Opioid Use Disorders Initiative to pilot EDDS in Maryland (Maryland EDDS Pilot). In 2020, the Office of National Drug Control Policy (ONDCP) funded CESAR to expand EDDS to five hospitals outside of Maryland (EDDS Phase I). With additional funding from ONDCP, EDDS is now being expanded to 20 additional hospitals across the country as part of Phase II. CESAR will post links to new sites as they become available.

The definition of EDDS drug-involved emergency department visits may vary by phase and site. Check notes within each dashboard for details.

Pilot Phase – Seven Hospitals in Maryland

Phase I – Six Hospitals in Multiple States


* Dashboards will be posted as data becomes available.


See also:

EDDS Hospitals – Data

EDDS Research Reports

EDDS Project Team