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News (Media Awareness Project) - Australia: Cannabis A 'Gateway' To Drug Use
Title:Australia: Cannabis A 'Gateway' To Drug Use
Published On:2011-07-19
Source:Age, The (Australia)
Fetched On:2011-07-19 06:02:09

SMOKING cannabis daily sets users up for a lifetime of multiple drug
use, a major study has found.

Weekly cannabis users are two to three times more likely to take up
other drugs than occasional users. And not just illegal substances
such as amphetamines, ecstasy and cocaine. Daily cannabis smokers
proved six times more likely than occasional users to start smoking
cigarettes, demonstrating what Dr Wendy Swift from the National Drug
and Alcohol Research Centre calls "the reverse gateway".

"People say drug use always starts with tobacco, but in this study,
some start with cannabis, and that moves them on to tobacco. And we
all know the health cost of tobacco use."

Dr Swift headed the first Australian study to chart the drug habits of
young adults, published today in the Journal of Epidemiol Community
Health. Dr Swift drew on a landmark longitudinal study of 2000
Victorian high school students overseen by the Royal Children's
Hospital's Centre for Adolescent Health. Of the 2000 students aged 14
or 15 in 1992, 1756 were still participating in the study in their

The study provides further evidence that cannabis is a "gateway"
drug that encourages users to experiment with other drugs both legal
and illicit.

It builds on a 2007 study of the same students that identified
cannabis as "the drug for life's future losers" if adolescents used
it heavily, as they were even more likely to suffer poor mental health
in future than teenage binge drinkers.

The 2007 study found that heavy teenage users tended to stick to their
one poison - either cannabis or alcohol - but by their 20s daily users
were trying all sorts of drugs.

While the majority of 20-year-olds in the study used cannabis (58.4
per cent), more than half the users had quit by the age of 29.
However, the remaining drug users were using more frequently than
ever, and as part of a regular drug cocktail, in which use of
amphetamines, ecstasy and cocaine doubled between the ages of 20 and

Daily cannabis smokers also proved the least likely to give up any
other drugs, except possibly cocaine. Dr Swift says this is probably
because "very few people in Australia tend to use cocaine

While use of illegal drugs and cigarettes also declined as users
reached their 30s, hard drinking remained a regular habit for more
than a quarter of the subjects even when they turned 29 (26.4 per cent).
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