Real-Time 911 Dispatch Data

In line with the NDEWS Coordinating Center’s focus on leading rather than lagged indicators of drug use trends, NDEWS has partnered with biospatial, io to access electronic patient care reports (ePCRs) from thousands of emergency medical services (EMS) providers in over 40 US states. Seventy-five percent of 911 dispatch data is reported within 24 hours of the event.

NDEWS is currently monitoring several categories of events, including: opioid and specifically heroin overdoses; non-opioid overdoses; alcohol-related events; methamphetamine-related events; suicide attempts and suicide ideation; and mental health-related events.

2021 Q3 Report: Methamphetamine-related 911 EMS responses per 10k population, July 2021 – September 2021

Methamphetamine has primarily been reported on the West coast of the US. Our data shown here suggest a shift to central and eastern US. Quarter 3 of 2021 experienced 30,567 methamphetamine-related 911 responses, with Colorado and Kentucky experiencing the largest rate of responses per 10k, although California experienced the highest overall count of methamphetamine-related 911 responses.

View the full report here.

NDEWS Alerts

NDEWS Alerts involve a dynamic notification system that calculates a score to quantify the degree to which observed counts of 911 calls in NDEWS Sentinel Site counties deviate from the expected range of values. These alerts are provided by the anomalous alert system from biospatial and are disseminated in the NDEWS Weekly Briefing. Past alerts are also archived below.


Week of 9/17 to 9/23

Week of 9/10 to 9/16

Week of 9/3 to 9/9

Week of 8/26 to 9/02

Week of 8/17 to 8/25

State Rankings in 911 Calls for Selected Events

Monthly rankings of rates of 911 dispatches per 10,000 population are also calculated for selected events. The top ten states with coverage in the biospatial platform are presented along with available patient demographic information.

Opioid-Involved Overdose Calls

Alcohol-Related Calls

The National Drug Early Warning System (NDEWS) is funded by the National Institute on Drug Abuse (U01DA051126) to the University of Florida (PI: Cottler; Co-Is: Goldberger, Nixon, Striley), New York University (Co-I: Palamar), and Florida Atlantic University (Co-I: Barenholtz).