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    • 2019-2020 National Survey on Drug Use and Health: Comparison of Population Percentages from the United States, Census Regions, States, and the District of Columbia (Documentation for CSV and Excel Files)

    Metadata Updated: September 7, 2025

    State estimates for these years are no longer available due to methodological concerns with combining 2019 and 2020 data. We apologize for any inconvenience or confusion this may causeBecause of the COVID-19 pandemic, most respondents answered the survey via the web in Quarter 4 of 2020, even though all responses in Quarter 1 were from in-person interviews. It is known that people may respond to the survey differently while taking it online, thus introducing what is called a mode effect.When the state estimates were released, it was assumed that the mode effect was similar for different groups of people. However, later analyses have shown that this assumption should not be made. Because of these analyses, along with concerns about the rapid societal changes in 2020, it was determined that averages across the two years could be misleading.For more detail on this decision, see the 2019-2020state data page.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date July 24, 2025
    Metadata Updated Date September 7, 2025

    Metadata Source

    Harvested from Healthdata.gov

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date July 24, 2025
    Metadata Updated Date September 7, 2025
    Publisher Substance Abuse and Mental Health Services Administration
    Maintainer
    Identifier https://healthdata.gov/api/views/m5q2-3ttj
    Data First Published 2025-07-14
    Data Last Modified 2025-09-06
    Category SAMHSA
    Public Access Level public
    Bureau Code 009:30
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://healthdata.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 7dcdb90a-3d79-4a57-a447-e12b01882503
    Harvest Source Id 651e43b2-321c-4e4c-b86a-835cfc342cb0
    Harvest Source Title Healthdata.gov
    Homepage URL https://healthdata.gov/d/m5q2-3ttj
    Program Code 009:061
    Source Datajson Identifier True
    Source Hash d11f67859ee9048f470049d615c8168010fb4c9bc37207f8d20c0fafb0f479ce
    Source Schema Version 1.1

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