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Substate estimates for 15 measures of substance use and mental illness based on the combined 2018, 2019, and 2020 National Surveys on Drug Use and Health (NSDUHs) are provided. NSDUH is an ongoing survey of the civilian, noninstitutionalized population of the United States aged 12 years or older. Estimates presented...

National maps showing 2018-2020 estimates for the substate regions ranked from lowest to highest for each measure and divided into 7 categories.

This report provides a guide to the development and presentation of 2018-2020 NSDUH substate estimates. A summary of the estimation methodology is included as well as sample sizes, response rates, and population estimates.

Prevalence estimates for 15 measures of substance use and mental illness are provided along with 95% confidence intervals for persons aged 12 or older for the substance use measures, persons aged 18 or older for the mental illness measures, and persons aged 12-20 for one alcohol measure.

Tables of prevalence estimates for persons aged 12 to 17, 18 to 25, 26 or older, and aged 18 or older.

Tables and maps defining the substate regions for each state and the District of Columbia.

This report provides a guide to the development and presentation of 2018-2020 NSDUH substate estimates. A summary of the estimation methodology is included as well as sample sizes, response rates, and population estimates. This shapefile includes geographic boundaries of the 2018-2020 NSDUH substate regions along with prevalence rates, map group...

Tables showing p-values for comparisons between substate region, state, and region estimates for 2018-2020.

Guide to using the p-value tables to compare substate estimates within and across states for 2018-2020.

P-value tables to compare substate estimates within and across states for 2018-2020.

Tables, maps, and datafiles defining the substate regions for each state and the District of Columbia.

The 2021 Methodological Resource Book contains separate chapters on field interviewing practices, survey materials, weighting, imputation, editing, and statistical inference. 

This extensive manual covers the information NSDUH Field Interviewers need to conduct screening and interviewing, including the information presented at a 7-day intensive training for new Field Interviewers.

These are the 2021 showcards field interviewers show to the respondents during the interview.

This is the 2021 NSDUH questionnaire used for screening respondents.