Substate Estimates of Substance Use and Mental Illness from the 2014-2016 NSDUH: Results and Detailed Tables

Find reports that present findings and data for U.S. substates based on results of the 2012–2014 National Survey on Drug Use and Health (NSDUH).

The following are substate estimates for 15 measures of substance use and mental illness based on the combined 2014, 2015, and 2016 National Survey on Drug Use and Health (NSDUH). NSDUH is an ongoing survey of the U.S. civilian, non-institutionalized population ages 12 years or older. These estimates are based on a small area estimation (SAE) methodology in which substate-level NSDUH data are combined with county and census block group and tract-level data from the 50 states and the District of Columbia.

Substate Estimation Methodology

The 2014-2016 NSDUH Overview and Summary of Substate Region Estimation Methodology provides a guide to the development and presentation of 2014-2016 NSDUH substate estimates. A summary of the estimation methodology is included as well as sample sizes, response rates, and population estimates.

National Maps and Substate Definitions

The 2014-2016 NSDUH National Maps of Prevalence Estimates by Substate Region present 2014-2016 estimates for 395 substate regions. The substate regions are ranked from lowest to highest for each measure and divided into seven categories.

The 2014-2016 NSDUH Substate Region Definitions include tables and maps defining the substate regions for each state and the District of Columbia. Definitions are also available for merging with external data sources. A Guide to Merging Definitions is also available.

Substate Estimates

The 2014-2016 NSDUH Substate Region Estimates: Tables provide prevalence estimates for 15 measures of substance use and mental illness. It also provides 95% confidence intervals for people ages 12 or older for substance use measures, people ages 18 or older for mental illness measures, and people ages 12-20 for one alcohol measure. This information is also available in CSV format.

The 2014-2016 NSDUH Substate Region Estimates by Age Group include tables of prevalence estimates for people ages 12 to 17, 18 to 25, 26 or older, and ages 18 or older.

The 2014-2016 NSDUH Substate Region Estimates Categorized Into Seven Groups by Age Group include tables and maps defining the substate regions for each state and the District of Columbia.

The 2014-2016 NSDUH State-Specific Substate Region Estimates and Maps show substate region prevalence estimates for 15 measures of substance use and mental illness. These are provided along with 95% confidence intervals for people ages 12 or older for substance use measures, people ages 18 or older for mental illness measures, and people ages 12-20 for one alcohol measure. You can access data for each substate region by state through the report’s table of contents.

Comparison of Substate Estimates

A Comparison of 2012-2014 and 2014-2016 NSDUH Substate Region Estimates includes tables showing the 2012-2014 and 2014-2016 substate area estimates. Also included are 95% Bayesian confidence intervals along with an indication of statistical significance of the difference.

A Comparison of 2008-2010 and 2014-2016 NSDUH Substate Region Estimates includes tables showing the 2008-2010 and 2014-2016 substate area estimates. Also included are 95% Bayesian confidence intervals along with an indication of statistical significance of the difference.

Tables of p-values for within year comparisons across substate regions are available in a zipped file of CSV files and Excel formats. A Guide to P-Value Tables is also available.

Substate Shapefile

The 2014-2016 NSDUH Substate Region Shapefile includes geographic boundaries of the 2014-2016 NSDUH substate regions along with prevalence rates, map group values, and the upper and lower bounds found in the map legends. It can be used for analysis and data display with geographic information systems (GIS) software.