The National Survey on Drug Use and Health (NSDUH): 2-Year R-DAS study has been updated to include data for the years 2012 and 2013 and can now be used to create combined 2-year estimates for the years: 2002-2003, 2004-2005, 2006-2007, 2008-2009, 2010-2011, and 2012-2013. The 2-Year R-DAS NSDUH study is available for online analysis using the Restricted-use Data Analysis System (R-DAS).
more...The 2-Year R-DAS NSDUH study includes a modification to the mapping of certain “OTHER, Specify” race responses to the detailed race categories reported in the IRNWRACE and NEWRACE1 variables. Specifically, responses of "Pakistan," "Bangladesh," "Nepal," and "Bhutan," that were previously mapped to "Asian Indian," are now mapped to "Other Asian."
New to the R-DAS? These resources will help you get started:
- A webinar recording on locating and analyzing data in the R-DAS;
- FAQs on producing correct estimates with R-DAS data files and other topics; and
- The restricted-use NSDUH variable crosswalk that contains all variables in the restricted-use NSDUH data files and their availability for specific groups of years.
View the NSDUH: 2-Year R-DAS study home page 
Access the Restricted-use Data Analysis System (R-DAS)
