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SAMHSA’s 2018 National Survey on Drug Use and Health (NSDUH) Report Data Findings

Today, SAMHSA released the latest data findings from the 2018 NSDUH. NSDUH provides estimates of the use of illegal substances, prescription drugs, alcohol, and tobacco, as well as mental disorders, treatment, and co-occurring substance use and mental disorders in the United States. NSDUH data also help to identify the extent of substance use and mental illness among different sub-groups; estimate trends over time; and determine the need for treatment services.

Screenshot of video presentation of the 2018 NSDUH data findings with Dr. Elinore F. McCance-Katz, MD, PhD.

View a video presentation of the NSDUH data findings by Assistant Secretary for Mental Health and Substance Use, Dr. Elinore F. McCance-Katz, MD, PhD.

Watch the Presentation  

View the Report

Reporters seeking information regarding NSDUH report/data, please contact the SAMHSA Press Office at (240) 276-2130 and press 4.

For general questions about SAMHSA, including information about mental and substance use disorders, email or call SAMHSA’s Contact Center at:


Reports and Detailed Tables From the 2018 National Survey on Drug Use and Health (NSDUH)

These reports and detailed tables present estimates from the 2018 National Survey on Drug Use and Health (NSDUH).

View the recorded presentation  of the NSDUH data and webcast slides (PDF | PPT) presented by Dr. Elinore F. McCance-Katz.

Annual National Report

Key Substance Use and Mental Health Indicators in the United States

NSDUH’s latest annual report focuses on substance use and mental health in the United States based on NSDUH data from 2018 and earlier years. The annual report presents estimates that meet the criteria for statistical precision and facilitate stable examination of trends over time to study changes in society and emerging issues. The 2018 Key Substance Use and Mental Health Indicators report summarizes the following:

  • Substance use (alcohol, tobacco, marijuana, cocaine, heroin, hallucinogens, and inhalants, as well as the misuse of opioids, prescription pain relievers, tranquilizers or sedatives, stimulants, and benzodiazepines)
  • Initiation of substance use
  • Perceived risk from substance use
  • Substance use disorders
  • Any mental illness, serious mental illness, and major depressive episode
  • Suicidal thoughts, plans, and non-fatal attempts for adults aged 18 or older
  • Substance use treatment and mental health service use

View the slides based on the Annual National Report: Key Substance Use and Mental Health Indicators in the United States (PDF | PPT).

Detailed Tables

The 2018 NSDUH Detailed Tables present national estimates of substance use and mental health. The focus is on trends between 2017 and 2018 and from 2002 to 2018, as well as differences across population subgroups in 2018. These tables present information for youths aged 12 to 17 and adults aged 18 or older (separately and combined) on drug, alcohol, and tobacco use, as well as substance use disorder (SUD), risk and availability of substance use, treatment, health topics, and alcohol consumption. Please refer to Chapter 4 of the Methodological Summary and Definitions report for more information.

Sections of the 2018 Detailed Tables:

Please refer to the related README file for instructions on how to use the Table of Contents and download files for faster viewing.

For a description of changes to the measures and more about the organization and purposes of the tables and table indicators, please see the Introduction section of the tables.


The 2018 Methodological Summary and Definitions report summarizes the 2018 NSDUH methods and other supporting information relevant to estimates of substance use and mental health issues. This report accompanies the annual detailed tables and provides information on key definitions for many of the measures and terms used in these detailed tables and in other 2018 NSDUH documents, along with further analytic details on these measures and the survey. The report is organized into five chapters:

  • Chapter 1 is an introduction to the report.
  • Chapter 2 describes the survey, including information about the sample design; data collection procedures; and key aspects of data processing, such as development of analysis weights.
  • Chapter 3 presents technical details on the statistical methods and measurement, such as suppression criteria for unreliable estimates, statistical testing procedures, and issues for selected substance use and mental health measures.
  • Chapter 4 covers special topics related to prescription psychotherapeutic drugs.
  • Chapter 5 describes other sources of data on substance use and mental health issues, including data sources for populations outside the NSDUH target population.
  • Appendix A is a glossary that covers key definitions for use as a resource with the 2018 NSDUH reports and detailed tables.
  • Appendix B provides a list of contributors to the report.


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