This study included observational data (e.g., estimated age and race/ethnicity), self-report data and biological measures.  An objective was to obtain at least 7,500 oral fluid samples for analysis.

Biological measures included breath alcohol measurements on 9,413 respondents, oral fluid samples from 7,719 respondents, and blood samples from 3,276 respondents. Oral fluid and blood samples were subjected to laboratory screening and LC/MS-MS and GC/MS confirmation respectively for both alcohol and 20 categories of drugs.

Data from this study is available in four formats: SAS, SPSS, Stata, and Excel; the data dictionary is compatible for all four file formats.

• SAS database
• SPSS database
• Stata database
• Excel database
• Data dictionary

A weighting variable is provided for application. Its construction is described in the methodology report.