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New restricted-use NSDUH data allows for two-year estimates

The National Survey on Drug Use and Health (NSDUH): 2-Year R-DAS (2002 to 2003, 2004 to 2005, 2006 to 2007, 2008 to 2009, and 2010 to 2011) data are now available for online analysis using the Restricted-use Data Analysis System (R-DAS). more...

Variables available in the NSDUH: 2-Year R-DAS file include:

  • State codes to allow for state-level analyses;
  • Detailed race/ethnicity;
  • Country of birth; and
  • Initiation of substance use (age of first use).

Other NSDUH R-DAS data files also available for analysis using the R-DAS are:

Note: The NSDUH R-DAS data files do not allow for the creation of single-year estimates. The NSDUH: 2-Year R-DAS data file produces combined two-year estimates for 2002-2003, 2004-2005, 2006-2007, 2008-2009, and 2010-2011. To correctly generate estimates, please review the FAQ on "How do I produce correct estimates for NSDUH: 4- and 2-Year R-DAS data files?"

View the NSDUH: 2-Year R-DAS study home page
Access the Restricted-use Data Analysis System (R-DAS)