{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["009:30"], "contactPoint": {"@type": "vcard:Contact", "fn": "SAMHSA", "hasEmail": "mailto:SAMHSAInfo@samhsa.hhs.gov"}, "description": "Learn about the editing and statistical imputation procedures that were applied to respondent data for the 2021 National Survey on Drug Use and Health (NSDUH). Logical editing resolves inconsistencies or ambiguous data based on a respondent\u2019s answers to other questions in the survey. Statistical imputation uses mathematical techniques to assign values when they are missing in the data.Introductory Chapters:An introduction, including a discussion of changes from the 2020 to 2021 survey.A description of the procedures and general principles for editing the NSDUH data.A description of the general imputation procedures used in NSDUH.Remaining chapters are descriptions of the editing and imputation for the following types of variables:Front-end demographics.Back-end demographics.Substance use.Special drugs and substance use disorder.Additional substance use, including treatment and emerging issues.Substance use risk and protective factors.Physical and mental health.Roster variables.Income.Health insurance.Pair variables.", "distribution": [{"@type": "dcat:Distribution", "description": "Visit the original government dataset for complete information, documentation, and data access.", "downloadURL": "https://www.samhsa.gov/data/report/nsduh-2021-editing-and-imputation-report", "mediaType": "text/html", "title": "Official Government Data Source"}], "identifier": "https://healthdata.gov/api/views/hfdk-ay8z", "issued": "2025-07-14", "keyword": ["data-editing", "data-imputation", "mental-health", "samhsa", "substance-use"], "landingPage": "https://healthdata.gov/d/hfdk-ay8z", "modified": "2025-09-06", "programCode": ["009:061"], "publisher": {"@type": "org:Organization", "name": "Substance Abuse and Mental Health Services Administration"}, "theme": ["SAMHSA"], "title": "NSDUH 2021 Editing And Imputation Report"}