This report from the CDC analyzes provisional data for nearly half of the states in the United States from the first half of 2019. Preliminary results show that nearly a third of overdose deaths involved opioids and stimulants, 80% of overdose deaths involved opioids (mostly fentanyl), and three out of five overdose deaths had a documented potential opportunity to deliver overdose prevention services.
O'Donnell, J., Gladden, R.M., Mattson, C.L., Hunter, C.T., Davis, N.L. (2020). Vital Signs: Characteristics of Drug Overdose Deaths Involving Opioids and Stimulants - 24 States and the District of Columbia, January-June 2019. MMWR Morb Mortal Wkly Report, 69(35), 1189-1197.