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Federal data
P-Value Tables
Published by Substance Abuse and Mental Health Services Administration · Updated 09/06/2025
- Last updated
- 09/06/2025
- First published 07/14/2025
- Update frequency
- Not listed
- Formats
- Web only
- Coverage
- Nationwide
- Federal data
About this dataset
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.
Files and access
Links open the official government source
- Official Government Data Sourcesamhsa.govWeb page
Links open outside websites we do not control.
Frequently asked questions
- Who publishes P-Value Tables?
- Substance Abuse and Mental Health Services Administration, part of U.S. Department of Health & Human Services, publishes this dataset on Data.gov.
- How often is it updated?
- The publisher does not list a schedule. The last update was on 09/06/2025.
- How do I download it?
- Use the official source link above to view or request the data.
Where this catalog comes from
- Data.gov CatalogU.S. General Services Administration
- State and local open data portalsSocrata Discovery API
- State and city CKAN portalsCalifornia, Virginia, Boston, Houston and more
- Government ArcGIS Hub sitesCity and county GIS data
Catalog checked 10/24/2026
We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.
Source: Data.gov · Last updated 10/24/2026 · Listing only; the data stays with the publisher
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