For general information about the PATH Study, including access to restricted- and public-use questionnaire and biomarker data files, please visit National Addiction & HIV Data Program (NAHDAP) .
Questions about the collection, content, weighting, documentation, or structure of PATH Study data may be submitted to:
PATHDataUserQuestions@Westat.com.
NOTE: This email address is not for questions about statistical analysis or analytic guidance. For analytic questions, researchers may wish to consult with statisticians and analysts at their institutions.