Okay Network research faithful, it looks like SAMHSA is opening part of the vault - so climb on in and root around. Here are the details:
- SAMHSA announces the launch of the Restricted-Use Data Analysis System (R-DAS). The R-DAS is an online analysis system available through the Substance Abuse and Mental Health Data Archive. The R-DAS allows researchers to produce frequencies and cross-tabulations using restricted-use data files. Disclosure limitation methods are embedded in the R-DAS output to control the risk of disclosing confidential information.
The R-DAS increases access to restricted-use data; the first file released is the National Survey on Drug Use and Health (NSDUH): 8-Year R-DAS (2002 to 2009). This data file only allows for creation of estimates based on a combined 8 years of data—from 2002 to 2009. Note: There is no year indicator variable in the 8-year file; thus, estimates for different time periods are not feasible using the NSDUH R-DAS data file.
- Variables available in the restricted-use NSDUH data file include:
- State codes to allow for state-level analyses
- Detailed race/ethnicity
- Country of birth
- Initiation of substance use (age of first use).
- In the coming months, SAMHSA is planning to release two additional restricted-use NSDUH data files through the R-DAS. The first restricted-use NSDUH file released will allow researchers to produce 4-year estimates (2002–2005, 2006–2009). The other restricted-use NSDUH file released will allow 2-year estimates (2002–2003, 2004–2005, 2006–2007, 2008–2009). Both of these R-DAS data files will include the variables listed above.
- For more information on the structure of the restricted-use NSDUH R-DAS data files, see the 2002 to 2009 codebook documentation. The restricted-use NSDUH variable crosswalk provides information on the variables available in each data file.
- Access the R-DAS
- View the NSDUH: 8-Year R-DAS (2002 to 2009)