title: Indicators of use of methamphetamine and other substances among men who have sex with men, San Francisco, 2003-2006.
abstract: BACKGROUND
  Substance use has been associated with high-risk sexual behavior among men who have sex with men (MSM) both in the U.S. and around the world. Recent efforts by local organizations in San Francisco have specifically targeted methamphetamine use in this population.
  
  
  METHODS
  We tracked methamphetamine and other substance use among men who have sex with men (MSM) in San Francisco from 2003 to 2006 using an indicator available in community outreach surveys of a prevention education program targeting MSM (n=4602).
  
  
  RESULTS
  Overall, use of diverse substances tended to decrease from 2003 to 2006, many significantly so. Reported use of methamphetamine significantly decreased among HIV-negative MSM. However, methamphetamine and alcohol use during sex was associated with unprotected potentially HIV serodiscordant sex.
  
  
  CONCLUSIONS
  Intensified prevention efforts to reduce methamphetamine use in San Francisco may be having some impact; however, strong associations of substance use and high-risk sex persist.
authors.affiliation: San Francisco Department of Public Health, San Francisco, CA 94102, USA.
authors.forename: Jason
authors.initials: J
authors.lastname: Vaudrey
authors.forename: H Fisher
authors.initials: HF
authors.lastname: Raymond
authors.forename: Sanny
authors.initials: S
authors.lastname: Chen
authors.forename: Jennifer
authors.initials: J
authors.lastname: Hecht
authors.forename: Katherine
authors.initials: K
authors.lastname: Ahrens
authors.forename: Willi
authors.initials: W
authors.lastname: McFarland
mesh_terms: D019973:Alcohol-Related Disorders / Q000453:epidemiology*; D019969:Amphetamine-Related Disorders / Q000453:epidemiology*; D003159:Community-Institutional Relations; D005500:Follow-Up Studies; D018023:HIV Seronegativity; D006679:HIV Seropositivity / Q000453:epidemiology / Q000523:psychology / Q000635:transmission; D006306:Health Surveys; D018451:Homosexuality, Male / Q000523:psychology / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008694:Methamphetamine; D012495:San Francisco; D019966:Substance-Related Disorders / Q000453:epidemiology*; D047568:Unsafe Sex / Q000523:psychology / Q000706:statistics & numerical data; D014505:Urban Population / Q000706:statistics & numerical data*
chemical_list: D008694:Methamphetamine