California Substance Abuse Research Consortium, September 2005: update on recent methamphetamine trends in four California regions.

California Substance Abuse Research Consortium (SARC) meetings have become a mainstay in supporting the exchange of new alcohol and other drug information on research to policy and other initiatives throughout the state. A cornerstone of SARC is a discussion of regional substance abuse patterns and trends. This article provides readers with a brief overview of recently released methamphetamine statistics, as well as a more detailed review of the methamphetamine information presented during the substance abuse epidemiology portion of the September 2005 meeting, as presented for Kern County, Los Angeles County, San Diego County, the San Francisco Bay Area, and the state of California.