"In 2022, the Drug Abuse Warning Network (DAWN) identified 143,596 (unweighted) drug-related emergency department (ED) visits from 53 participating hospitals. These data were analyzed to generate nationally representative weighted estimates (1) for all drug-related ED visits, (2) for the top drugs involved in drug-related ED visits, (3) for different opioid types involved in ED visits, (4) to describe polysubstance in ED visits, and (5) to identify newly mentioned drugs in 2022."

Substance Abuse and Mental Health Services Administration. (2023). Drug Abuse Warning Network: Findings from Drug-Related Emergency Department Visits, 2022 (HHS Publication No. PEP23-07-03-001). Rockville, MD: Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration. Retrieved from https://www.samhsa.gov/data/.