This report describes the sample design for the 2021 National Survey on Drug Use and Health (NSDUH). It describes the target population and the five stages of sample selection, including the impact of coronavirus disease 2019 (COVID-19) pandemic. It also includes information on sample weighting and variance estimation procedures for the 2021 NSDUH.Chapter 1 introduces the report, describes the target population, provides a general overview of the 2021 NSDUH sample design, and summarizes the impact of the COVID-19 pandemic on the 2021 NSDUH. Chapter 2 summarizes the 2014 through 2022 coordinated design, while Chapter 3 discusses the first three stages of selection in greater detail. Chapter 4 describes the fourth and fifth stages of selection. Finally, Chapter 5 describes sample weighting and variance estimation procedures for 2021.The document is available as a PDF.

This report describes the sample design to the 2012 National Survey on Drug Use and Health (NSDUH). A coordinated sample design was developed for the 2005 through 2009 NSDUHs. The 2010-2011 and 2012-2013 samples are extensions of the 5-year sample. This report describes the general sample allocation procedures for the main NSDUH study, the NSDUH\'s Mental Health Surveillance Study, and the Questionnaire Field Test.

This report describes the sampling design for the 2015 NSDUH.

This report describes the design and estimation procedures to the supplemental Mental Health Surveillance Study data collection to the 2011 National Survey on Drug Use and Health (NSDUH).

This report describes the design and estimation procedures to the supplemental Mental Health Surveillance Study (MHSS) data collection to the 2012 National Survey on Drug Use and Health (NSDUH). The report describes instruments used in measuring mental illness, sample design and selection (including the MHSS clinical sample characteristics), data collection and processing, weighting, nonresponse adjustment, and the development of the model for estimating mental illness.

Learn how to produce basic estimates with the 2021 National Survey on Drug Use and Health (NSDUH). The report describes the techniques that were used to make the 2021 NSDUH Detailed Tables and the 2021 NSDUH Annual National Report, but users may also find these techniques useful for their own research with NSDUH. The report describes the calculation of estimates and sampling errors, degrees of freedom, and the procedures for determining when low-precision estimates should be suppressed. It also includes sample code in several statistical languages that data users can modify to use in their own research.Chapters:Introduction to the report.Background on the survey design, including redesign and questionnaire changes.Prevalence estimates and how they were calculated, including specifics on various topics presented in the detailed tables.Discussion of how missing item responses of variables that are not imputed may lead to biased estimates.Discussion of sampling errors and how they were calculated.Description of degrees of freedom and how they were used to compare estimates.Discussion of how the statistical significance of differences between estimates was determined.Discussion of confidence interval estimation.Discussion of when estimates with low precision were suppressed.Appendix A contains code samples for various statistical procedures documented within the report.

Learn how to produce basic estimates with the 2022 National Survey on Drug Use and Health (NSDUH). The report describes the techniques that were used to make the 2022 NSDUH Detailed Tables and the 2022 NSDUH Annual National Report, but users may also find these techniques useful for their own research with NSDUH. The report describes the calculation of estimates and sampling errors, degrees of freedom, and the procedures for determining when low-precision estimates should be suppressed. It also includes sample code in several statistical languages that data users can modify to use in their own research.Chapters:Introduction to the report.Background on the survey design, including redesign and questionnaire changes.Prevalence estimates and how they were calculated, including specifics on various topics presented in the detailed tables.Discussion of how missing item responses of variables that are not imputed may lead to biased estimates.Discussion of sampling errors and how they were calculated.Description of degrees of freedom and how they were used to compare estimates.Discussion of how the statistical significance of differences between estimates was determined.Discussion of confidence interval estimation.Discussion of when estimates with low precision were suppressed.Appendix A contains code samples for various statistical procedures documented within the report.

This report is a continuation of the 2021National Survey on Drug Use and Health (NSDUH) Sample Design Report. It further documents the 2021 NSDUH sample experiences, by comparing expected outcomes with what actually occurred, and documenting unexpected issues that came up during the year. The report also summarizes the information about the sample design that is more thoroughly detailed in the previous report.Chapter 1 introduces the report and summarizes the impact of the coronavirus 2019 pandemic on the sample design and data collection. Chapter 2 revisits the 2021 sample design. Chapters 3, 4, and 5 document the sample experiences at the third, fourth, and fifth stages of sample selection, respectively. Finally, Chapter 6 compares the observed and expected precisions, and also examines trends in average design effects over time.The document is available as a PDF.

Use this summary report to properly interpret 2021 NSDUH estimates of substance use and mental health issues. The report accompanies theannual detailed tablesand covers overall methodology, key definitions for measures and terms used in 2021 NSDUH reports and tables, and selected analyses of the measures and how they should be interpreted.The report is organized into six chapters:Introduction.Description of the survey, including information about the sample design, data collection procedures, and key aspects of data processing such as development of the analysis weights. The report also includes methodological changes and related issues in the 2021 NSDUH due to COVID-19.Technical details on the statistical methods and measurement, such as suppression criteria for unreliable estimates, statistical testing procedures, issues around selected substance use and mental health measures, and the impact of methodological changes on response rates.Special topics related to prescription psychotherapeutic drugs.A comparison between NSDUH and other sources of data on substance use and mental health issues, including data sources for populations outside the NSDUH target population.A more in-depth view of special methodological issues for the 2021 NSDUH, including the results of special analyses that led SAMHSA to not compare estimates from 2021 to estimates from previous years.An appendix covers key definitions used in NSDUH reports and tables.

This report details the 2019 sample design for the NSDUH and covers the design overview, target population, and stages of sample selection. The design overview describes how the sample design remains consistent with NSDUH’s designs since 1991 and has extended coverage of the sample since then to include additional resident populations. The 2019 target population for this report comprises a civilian, noninstitutionalized population aged 12 years or older residing within the 50 states and the District of Columbia. There are three stages of sample selection that are explained in terms of how to select and aggregate the appropriate census tracts and segments based on state sampling regions (SSRs) for each state.