[link|http://www.latimes.com/news/local/la-me-pot7sep07,1,3527430.story?coll=la-headlines-california|http://www.latimes.c...dlines-california]
Bucking dire predictions by anti-drug warriors, the 10 states that approved medical marijuana laws over the last decade have experienced sharp declines in cannabis use among teenagers, according to a new study by a marijuana advocacy group.
California has seen usage among ninth-graders drop 47% since 1996, the year the state became the nation's first to legalize medical marijuana. Over the same period, the nation as a whole experienced a 43% decline among eighth-graders.
The study, released today, is based on data from national and state surveys, which show a drop in marijuana use by teens.
Although debate over medical marijuana is often shaded by concerns about increasing drug abuse among young people, the report suggested the opposite has been true.
The study's authors were Mitch Earleywine, a State University of New York psychology professor, and Karen O'Keefe, a legislative analyst with Marijuana Policy Project, the organization that commissioned the research based on state and federal data.
That data "strongly suggests" that approval of medical marijuana has not increased recreational use of cannabis among adolescents, Earleywine and O'Keefe concluded. And the decline in many of the states with medical marijuana laws is "slightly more favorable" than trends nationwide, they said.