(CBS/AP) Pot use is becoming a big problem for U.S. teens, a new survey suggests. The Partnership at Drugfree.org released a new survey Wednesday that found nearly 1 in 10 teens said they smoke marijuana at least 20 or more times a month.
That amounts to a whopping 80 percent rise in past-month marijuana use among teens since the organization's 2008 survey. The report by The Partnership at Drugfree.org and MetLife Foundation also said abuse of prescription medicine may be easing a bit among young people in grades 9 through 12, but still remains high.
Based in New York, The Partnership at Drugfree.org is formerly The Partnership for a Drug-Free America - best known for the "this is your brain on drugs" ads of the 1980s and 1990s. The nonprofit group launched a new name in 2010 to position itself as more of a resource to parents and to avoid the misperception that the group is a government organization.
For the report, researchers gave anonymous questionnaires to 3,322 teens in grades 9-12 that they filled out at school from March to June 2011.
Partnership President Steve Pasierb says the mindset among parents is that a little weed or a few pills is no big deal.
"Parents are talking about cocaine and heroin, things that scare them," said Pasierb. "Parents are not talking about prescription drugs and marijuana. They can't wink and nod. They need to be stressing the message that this behavior is unhealthy."
Use of harder drugs - cocaine and methamphetamine - has stabilized in recent years, the group's survey showed. But past-month usage of marijuana grew from 19 percent in 2008 to 27 percent last year. Also alarming, says Pasierb, is the percentage of teens smoking pot 20 or more times a month. That rate went from 5 percent in 2008 to 9 percent last year, or about 1.5 million teens toking up that frequently.
Alex, 17, in Houston, says he started smoking pot at age 13, mostly on the weekends with friends.
"I just liked being high," said Alex, who is in a recovery program and asked that his last name not be used. "I always felt happier. Everything was funnier and my life was just brighter."
Alex then started abusing prescription drugs at 14. He blacked out one day at school, got arrested and ended up in rehab. After being sober for two years, Alex slipped and smoked pot last month. Still, he says he hopes to work toward a more sober life.
The findings on marijuana track closely with those in a recent University of Michigan study sponsored by the National Institute on Drug Abuse, part of the National Institutes of Health. That study also found marijuana use rising among teens the past few years, reversing a long decline in the previous decade.
"These findings are deeply disturbing as the increases we're seeing in heavy, regular marijuana use among high school students can spell real trouble for these teens later on," Pasierb said in a written statement, adding kids who start in teen years are more likely to have substance abuse problems later in life.
Teens who smoked 20 times or more a month were almost twice as likely as kids who smoked pot less frequently to use ecstasy, cocaine or crack, according to the report.
Other findings from the report:
One in 10 teens report using prescription painkillers - Vicodin or OxyContin - in the past year, down from a peak of 15 percent in 2009 and 14 percent in 2010.
Just over half of Hispanic teens report using an illicit drug, such as Ecstasy or cocaine, in the past year. That compares to 39 percent for Caucasian teens and 42 percent for African American teens.
Past-year alcohol use and past-month drinking is holding steady from the 2008 report at 56 percent and 38 percent respectively
The Marijuana Policy Project, which advocates legalization, says making pot legal for adults might help cut teen usage.
"We definitely don't think that minors should be using marijuana any more than they should be drinking or using tobacco, but arresting people for doing that never stops minors," said Morgan Fox, a spokesman for the group. "If we remove marijuana from the criminal market and have the market run by responsible business people that have an incentive to check IDs and not sell to minors, then we might see those rates drop again."