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The WANAHS was a statewide survey of 6,713 adult household residents
designed to measure the prevalence of substance use and the need for
substance abuse treatment. Data were collected from February 2003
through February 2004. Funding was provided by a grant from the
Federal Center for Substance Abuse Treatment. These data update a
previous survey conducted in 1993-94. The
Washington State Department of Social and Health Services (DSHS)
Research and Data Analysis Division conducted the project on behalf
of the DSHS Division of Alcohol and Substance Abuse.
The WANAHS over sampled young adults, minorities, and
lower-income populations to facilitate demographic analyses. The
WANAHS sample was weighted to U.S. Census data to provide direct
statewide estimates of substance use and the need for substance abuse
treatment services. |