The survey also demonstrated that teens who use one substance are far more likely to use another. The powerful correlations among teens who smoke, drink and use marijuana and expect to use an illegal drug in the future make it essential for parents. principals and teachers to focus on all substances in their prevention efforts.” said Califano.

• 63% of smokers got drunk at least once a month compared with 10% of teens who never smoked
• 9% of smokers also have smoked marijuana compared with 14% of teens who have never smoked.
• 45% of pot smokers also smoked a cigarette in past month compared to 3% of non-pot smokers.
• 60% of pot smokers also drank alcohol in the past month compared with 15% of non-pot smokers.
• 6% of pot smokers get drunk at least once a month compared with 6% of non-pot smokers, and 40% are likely to use an illegal drug in the future compared with 11% of non-pot smokers.