Substance and addiction prevention branch
Overdose Prevention Initiative (OPI) scientists collect and analyze data on: fatal drug-related overdoses, fatal drug-related overdose risk factors, non-fatal drug-related overdoses, prescription data and substance use and misuse behaviors. OPI shares data via a dashboard, data briefs and manuscripts. The links below are OPI’s most recent data products.
For questions, please contact us at opi@cdph.ca.gov.
CA Overdose Surveillance Dashboard
Overdose Data Products
- Drug-Related Overdose Deaths among Veterans in California, 2021–22 (PDF)
- Opioid-Related Overdose Deaths in California, 2021 (PDF)
- California emergency department (ED) visits fell sharply at the onset of COVID-19, but drug-related ED visits stayed steady (PDF)
- California State Unintentional Drug Overdose Reporting System (SUDORS) 2019 Overview Data Brief (PDF, 1.4MB)
- Sociodemographic and geographic disparities in excess fatal drug overdoses during the COVID-19 pandemic in California
- Synthetic Opioid-Related Overdose Deaths Increased at an Unpredictable Pace in 2020 (PDF)
- Patterns of Opioid-Related Overdose in California, 2011–17 (PDF)
- Counting Opioid Overdose Deaths Among American Indians Using Different Definitions (PDF)
Preliminary Fatal Drug-Related Overdose Data
- December 2023–November 2024 (PDF)
- November 2023–October 2024 (PDF)
-
September 2023–August 2024 (PDF)
- August 2023–July 2024 (PDF)
- July 2023–June 2024 (PDF, 2.1MB)
Evaluation Data Products
-
Impacts of prescription drug monitoring program policy changes and county opioid safety coalitions on prescribing and overdose outcomes in California, 2015–18
-
Local Overdose Safety Coalitions Progress Report Results (PDF)
Behavioral Health Data Products
Page Last Updated :